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OBJECTIVE: This scoping review aimed to systematically identify evidence-based interventions to stimulate healing or protect the harvested palate of patients undergoing gingival grafting. MATERIAL AND METHODS: The study followed guidelines from the Joanna Briggs Institute and PRISMA-ScR (protocol available at osf.io/zhafn). PubMed, Embase, and seven other databases were searched on November 2022, with additional monitoring until April 2023. The inclusion criteria focused on studies evaluating outcomes related to the donor area (palate) and interventions for healing or protecting it, regardless of publication year and language. Data from the included publications was extracted and presented through narrative text, tables, and figures. RESULTS: Eighty-one studies (including 64 clinical trials, four case series, five theses, and eight systematic reviews) and 37 clinical trial records were included. The number of studies on this topic has significantly increased, reflecting a growing interest in the field. Thirty-six interventions with published results and 12 interventions with unpublished results from clinical trial registers were identified. Some promising interventions that showed potential for improving patient-reported outcomes include cyanoacrylate adhesive, platelet-rich fibrin (PRF), and the combination of palatal stents and healing agents. CONCLUSIONS: Thirty-six interventions with published results were identified for postoperative use on the harvested palate, showing varying levels of evidence and conflicting effectiveness for specific outcomes. CLINICAL RELEVANCE: Postoperative discomfort and pain in the palate are commonly experienced by patients undergoing grafting procedures using this region as the donor area. Awareness of the available options and their levels of evidence is crucial for informed decision-making.

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The aim of this study was to compare the effect of the application of a flowable resin composite coating, over a collagen sponge stabilized with suture, on postoperative pain after free gingival graft harvesting. Thirty-two free gingival grafts were harvested from the palate in 32 patients, who were subsequently randomized to have only a collagen sponge stabilized with sutures applied to the palatal wound (control), or to have the collagen sponge coated with a flowable resin composite (test). Patients were observed for 14 days, and the pain level was evaluated by using a numerical rating scale. The consumption of analgesics during the postoperative period and the characteristic of the graft were also analyzed. The patients in the test group reported having experienced significantly less pain statistically than the patients in the control group throughout the study. The consumption of analgesics was lower in the test group. The dimensions of harvested grafts in the control and test groups showed no significant differences in height, width, and thickness. In conclusion, the addition of flowable resin composite coating to the hemostatic collagen sponge on the palatal wound following free gingival graft harvesting helped to minimize postoperative pain.

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A reabilitação do paciente com reabsorção severa do rebordo mandibular é uma questão desafiadora na prática cirúrgica devido aos problemas presentes em relação a retenção e estabilidade da prótese. Como consequência apresenta um vestíbulo lingual e vestibular raso, inserções musculares mais próximas ou no nível da crista do rebordo juntamente com a falta de mucosa aderida queratinizada, cujo são considerados fatores de risco para o sucesso em longo prazo dos implantes dentários. Para a eliminação dessas interferências é indicado a cirurgia, o objetivo deste estudo é descrever uma abordagem cirúrgica modificada de enxerto de mucosa palatina acompanhada de uma vestibuloplastia e sulcoplastia lingual simultâneo ao reposicionamento dos ductos das glândulas sublinguais, para aumentar a profundidade do vestíbulo lingual/bucal raso, corrigindo o posicionamento dos ductos das glândulas sublinguais e ganho de tecido queratinizado ao redor dos implantes dentários previamente instalados. Para tanto, a metodologia adotada foi uma revisão da literatura pertinente atualizada e descrição de um relato de caso clínico de uma paciente do sexo feminino, de 60 anos de idade, que se submeteu a cirurgia de enxerto de mucosa palatina, seguida de uma vestibuloplastia e sulcoplastia lingual simultaneamente ao reposicionamento dos ductos das glândulas sublinguais, com ancoragem externa em região interforaminal em mandíbula. Finalizando o tratamento com a entrega das próteses sobre os implantes do tipo protocolo em região inferior e nova prótese total removível superior. Concluiu-se ser o enxerto de mucosa palatina com ancoragem externa em região interforaminal, simultâneos a vestibuloplastia e sulcoplastia lingual se mostra como uma abordagem efetiva para aumentar a profundidade vestibular e lingual, com ganho de tecido queratinizado ao redor dos implantes, em rebordo mandibular gravemente reabsorvido. Além disso, proporciona o reposicionamento dos ductos das glândulas sublinguais.

The rehabilitation of the patient with severe resorption of the mandibular ridge is a challenging issue in surgical practice due to the present problems regarding retention and stability of the prosthesis. As it consequently presents a shallow lingual and buccal vestibule, muscle insertions closer to or at the level of the crest of the ridge together with the lack of adherent keratinized mucosa, which are considered risk factors for the long-term success of dental implants. For the elimination of these interferences, surgery is indicated, the objective of this study is to describe a modified surgical approach of grafting of the palatal mucosa accompanied by a vestibuloplasty and lingual sulcoplasty simultaneously with the repositioning of the ducts of the sublingual glands, to increase the depth of the lingual/buccal vestibule shallow, correcting the positioning of the ducts of the sublingual glands and gain of keratinized tissue around the previously installed dental implants. To this end, the methodology adopted was a review of the relevant updated literature and description of a clinical case report of a female patient, 60 years old, who underwent palatine mucosal graft surgery, followed by a vestibuloplasty and lingual sulcoplasty simultaneously with the repositioning of the ducts of the sublingual glands, with external anchorage in the interforaminal region of the mandible. Finishing the treatment with the delivery of the prostheses on the protocol-type implants in the lower region and a new upper removable total prosthesis. It was concluded that the graft of the palatal mucosa with external anchorage in the interforaminal region, simultaneous to vestibuloplasty and lingual sulcoplasty, is an effective approach to increase buccal and lingual depth, with gain of keratinized tissue around the implants, in severely affected mandibular ridges. reabsorbed. In addition, it provides repositioning of the ducts of the sublingual glands.

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Abstract The literature describes multiple ways to stimulate wound healing to reduce the patient's perception of pain. This systematic review aimed to evaluate if methods that enhance wound healing can reduce the patient's perception of pain after free gingival graft removal from the palate region compared to natural healing. A systematic review protocol was written following the PRISMA checklist. Electronic searches of five databases were performed to identify randomized clinical trials (RCTs) that assessed the patient's perception of pain after the removal of a free gingival graft from the palate. The primary outcome was the visual analog scale (VAS) score assessing the patient's perception of pain 7 days after the free gingival graft removal from the palate region. Of the 1,622 potentially relevant articles retrieved from the electronic databases, 16 RCTs were selected for qualitative analysis, and of these, 6 RCTs were included in the meta-analysis. RCTs showed a significant VAS reduction associated with the use of methods to enhance wound healing. The pooled estimates revealed a significant overall VAS reduction of 2.20 (95% CI 2.32, 2.07) 7 days after surgery. The methods that presented the greatest reduction in the perception of pain were platelet-rich fibrin, hyaluronic acid, and autologous fibrin glue. Methods that enhance wound healing, including platelet-rich fibrin, hyaluronic acid, and autologous fibrin glue, can reduce pain perception after free gingival graft removal in the palate region. However, only 1 RCT investigated each approach, which hinders the conclusion regarding the best procedure to reduce the perception of pain.

Resumo A literatura descreve diferentes formas de estimular a cicatrização para reduzir a percepção de dor do paciente. Esta revisão sistemática teve como objetivo avaliar se métodos que melhoram o reparo de feridas podem reduzir a percepção de dor do paciente após a remoção de enxerto gengival livre da região do palato quando comparado a cicatrização natural. Um protocolo de revisão sistemática foi escrito seguindo a lista de verificação PRISMA. Pesquisas eletrônicas em cinco bancos de dados foram realizadas para identificar ensaios clínicos aleatorizados (ECA) que avaliaram a percepção de dor do paciente após a remoção do enxerto gengival livre do palato. O desfecho primário foi o escore da escala visual analógica (VAS) avaliando a percepção de dor do paciente 7 dias após a remoção do enxerto gengival livre da região do palato. Dos 1.622 artigos potencialmente relevantes recuperados das bases de dados eletrônicas, 16 ECAs foram selecionados para análise qualitativa, e destes, seis ECAs foram incluídos na meta-análise. Os estudos analisados demonstraram uma redução significativa de VAS associada ao uso de métodos para melhorar a cicatrização de feridas. As estimativas agrupadas revelaram uma redução global significativa do VAS de 2,20 (95% CI 2,32, 2,07) 7 dias após a cirurgia. Os métodos que apresentaram maior redução na percepção de dor foram fibrina rica em plaquetas, ácido hialurônico e cola de fibrina autóloga. Métodos que melhoram a cicatrização de feridas podem reduzir a percepção de dor após a remoção do enxerto gengival livre na região do palato, especialmente fibrina rica em plaquetas, ácido hialurônico e cola de fibrina autóloga. No entanto, apenas um ECA avaliou cada abordagem, o que impossibilita a conclusão sobre qual é o melhor procedimento para reduzir a percepção de dor.

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A Mucosite peri-implantar é considerada a precursora da peri-implantite, ela é uma lesão inflamatória da mucosa peri-implantar na ausência de perda óssea marginal contínua. O objetivo desse relato de caso, foi descrever o tratamento da mucosite periimplantar através da cirurgia de enxerto gengival livre. Foi proposto, portanto, um tratamento reabilitador envolvendo uma abordagem multidisciplinar de forma a resgatar e restabelecer estética, função e bem-estar através do enxerto gengival livre para melhorar as características de mucosa e viabilizar uma previsibilidade de uma prótese definitiva implantosuportada em condições teciduais mais estáveis. O uso do EGL para aumento da gengiva queratinizada na cirurgia de implantes em paciente idosos é uma solução prática e segura para a manutenção da saúde periodontal ao redor do implante... (AU)

Peri-implant mucositis is considered the precursor of peri-implantitis, it is an inflammatory lesion of the peri-implant mucosa in the absence of continuous marginal bone loss. The purpose of this case report was to describe the treatment of peri-implant mucositis through free gingival graft surgery. Therefore, a rehabilitation treatment involving a multidisciplinary approach was proposed in order to rescue and reestablish aesthetics, function and well-being through the free gingival graft to improve the characteristics of the mucosa and enable a predictability of a permanent implant prosthesis under more stable tissue conditions. The use of EGL to increase keratinized gingiva in implant surgery in elderly patients is a practical and safe solution for maintaining periodontal health around the implant... (AU)

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OBJECTIVE: A systematic review (SR) was conducted to answer the following focused question based on PICO strategy: In patients who were submitted to harvesting palatal free gingival graft, could platelet-rich fibrin (PRF) application in comparison with another method improve the healing, pain, and control of postoperative bleeding in the palatal area in randomized clinical trials? METHODS: A SR was conducted according to the PRISMA guidelines. The MEDLINE (PubMed), Scopus, Embase, and Web of Science databases were searched, and hand searches were made, covering the period up to August 2020, for randomized clinical trials (RCTs) reporting the effect of PRF membrane in postoperative palatal healing management compared with any other methods. The risk of bias (RoB) of the studies included was assessed by using the RoB 2 tool. RESULTS: The electronic search strategy identified 150 articles. After title screening and abstract reading, 141 studies were excluded, and 9 full-text publications were comprehensively evaluated. Finally, 8 articles were included in the systematic review. Six studies showed that the PRF membrane was effective in improving wound healing during the first 2 weeks. As regards patient-centered outcomes, five studies showed that PRF promoted less postoperative pain. Finally, five studies that evaluated bleeding showed that the PRF membrane improved control of postoperative bleeding. RoB was classified as low in 4 studies, 3 with some concerns, and only one study did not describe the outcome data, and as this was missing, it was not possible to verify the protocol of data analysis for this study; therefore, it was classified as having high RoB. CONCLUSION: Within the limitations of this study, the collective evidence emerging from this SR may support the use of PRF membrane in the palatal area after free gingival graft harvesting. The results of this review must be interpreted with caution, due to the low number of RCTs included and high degree of heterogeneity among the PRF protocols. Further well-designed RCTs with accurate protocol and standard PRF parameters are required in order to gain clear understanding of the influence of PRF on wound healing and patient-centered outcomes. CLINICAL RELEVANCE: The use of PRF membrane for the protection of the palatal donor site following free gingival graft harvesting procedures improves wound healing and patients' quality of life.

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The purpose of this case report was to describe a technique to modify the free gingival graft by perforations within the graft to guarantee a horizontal increase in the keratinized mucosa in the anteroinferior sector of a total edentulous mandible after osseointegration of previously placed dental implants in a hybrid prosthesis protocol. A 71-year-old male underwent free modified gingival graft surgery with perforations at the level of each implant. At 3 months, the mucosa appeared to be healthy and keratinized, especially at a horizontal level around the implants previously diagnosed with mucositis, providing the patient with satisfactory results. Finally, the hybrid prosthesis was cleaned and polished due to the presentation of a hard plate at the level of the abutments. Within the limitations of this case report, further research is needed to evaluate the long-term efficacy of this modification to the free gingival graft.

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O objetivo deste trabalho foi apresentar o relato de um caso clínico no qual uma paciente de 52 anos, com ausência de tecido queratinizado na região de rebordo do elemento 46, previamente extraído, foi submetida à cirurgia de enxerto gengival livre para criar uma faixa de tecido queratinizado, antes da instalação do implante osseointegrado. Após três meses de cicatrização, foi constatado signifi cativo ganho de tecido queratinizado na região, tornando o sítio mais favorável à reabilitação com implante dentário. Dessa forma, foi seguido o planejamento inicial e instalado um implante na região, que foi reabilitado posteriormente. Diversos trabalhos têm mostrado que o selamento biológico proporcionado por uma adequada faixa de tecido queratinizado ao redor de implantes seria um pré-requisito para a saúde e o sucesso desses implantes no longo prazo. A revisão clínica e radiográfi ca com três anos de acompanhamento mostrou estabilidade do tecido peri-implantar e, consequentemente, o sucesso do tratamento proposto.

The aim of this study was to present a clinical case report where a 52-year-old patient, with absence of keratinized tissue in the ridge region of the previously extracted element 46, received a free gingival graft surgery to create a tissue band before the osseointegrated implant installation. After 3 months of healing, a signifi cant gain of keratinized tissue was observed in the region, making the site more amenable to rehabilitation with a dental implant. In this way, the initial planning was followed and an implant was installed in the region and the restoration delivered afterwards. Several studies have shown that biological sealing provided by a suitable range of keratinized tissue around implants would be a prerequisite for the health and success of these implants in the long run. The clinical and radiographic review with 3 years of follow-up showed stability of the peri-implant tissue and, consequently, the success of the proposed treatment.

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Antecedentes: Las técnicas de manejo de tejidos blandos para aumentar rebordes alveolares atrofiados incluyen el uso de injertos de tejido conectivo, con o sin collar de epitelio, y técnicas en rollo. Algunas veces generan complicaciones posoperatorias. Objetivo: Describir el caso de una paciente a la que se le realizó aumento de reborde alveolar y se produjo una exostosis. Caso clínico: A una paciente de 35 años se le realizó un aumento del reborde alveolar con la técnica de bolsillo en el área del diente incisivo central superior derecho. Se tomó un injerto de tejido conectivo sin collar epitelial del paladar que se trasplantó y cubrió con el colgajo. La paciente regresó siete años después y clínicamente presentaba una aparente exostosis en la zona vestibular del diente tratado que la afectaba estéticamente. Se realizó osteoplastia para mejorar el contorno y se tomó una biopsia del hueso cuya histopatología mostró un tejido compatible con hueso alveolar. Conclusiones: La exostosis es una complicación posoperatoria inusual en casos de reborde alveolar que puede ser tratado con éxito. Se requiere más investigación sobre dichos efectos.

Background: Soft-tissue treatment techniques for alveolar ridge augmentation include connective tissue grafts, with or without epithelial collar, and roll techniques. Sometimes, there are postoperative complications. Purpose: To describe a case for a female patient who underwent an alveolar ridge augmentation and developed an exostosis. Case description: A 35-year-old female patient underwent an alveolar ridge augmentation procedure through a pocket technique in the upper right central incisor. A connective tissue graft without epithelial collar from the palate was transplanted and covered with the flap. Seven years later the patient returned with an exostosis in the buccal area of the treated tooth that affected her aesthetically. An osteoplasty was performed and a bone biopsy was taken, whose histopathological analysis showed a bone-compatible tissue. Conclusion: Exostosis is an unusual postoperative complication in cases of alveolar ridge augmentation that can be successfully treated. More research is necessary about such complications.

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A presença ou ausência de gengiva inserida pode interferir na manutenção da saúde gengival, uma vez que sua deficiência leva à exposição radicular dificultando o processo de higienização, o que resulta na presença de biofilme e inflamação gengival com perda de inserção. Foi realizada terapia periodontal cirúrgica com enxerto gengival livre em paciente com recessão gengival classe III de Miller para aumento de faixa de tecido queratinizado. Após período de pós-operatório e acompanhamento de um ano e 12 meses, foi observado ganho e manutenção de volume e altura do tecido queratinizado enxertado, com saúde gengival e ganho de inserção. Nos casos onde há necessidade de reforçar áreas fragilizadas pela diminuição ou falta de gengiva inserida, a técnica de enxerto gengival livre apresenta boa previsibilidade e manutenção da faixa de tecido queratinizado, favorecendo o controle de biofilme e saúde gengival.

The presence or absence of attached gingiva may interfere with the maintenance of gingival health, since its defi ciency in some cases complicates the process of cleaning, resulting in the presence of biofilm and gingival inflammation with insertion loss. This case report describes a surgical technique based on free gingival graft in a patient with gingival recession Miller class III to increase keratinized tissue band. After the postoperative period of 12 months tissue improvement was observed, as well as, volume maintenance and height of keratinized grafted tissue along with gum health and insertion gain. In cases where there is need to strengthen weakened areas by reducing or lack of attached gingiva, the free gingival graft technique has good predictability and maintenance of keratinized tissue range, favoring the control of biofilm and gingival health.

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Defeitos de recessões gengivais podem contribuir para a ocorrência de hipersensibilidade dentinária, cáries radiculares, desenvolvimento de abrasões cervicais e deficiência estética. O objetivo do presente trabalho foi relatar o tratamento de recessões gengivais múltiplas classe III de Miller, em região inferior anterior de mandíbula, utilizando a técnica de enxerto gengival livre. As recessões gengivais classe III de Miller nos dentes 31, 41 e 42 foram, provavelmente, causadas pela associação de um biotipo periodontal delgado e presença de inserções musculares na região anterior da mandíbula. Após a remoção de inserções musculares presentes e frênulos, um enxerto de epitélio conjuntivo foi cuidadosamente preparado para ser acomodado no leito receptor das recessões. Após 24 meses de proservação clínica, foi possível observar: recobrimento parcial das recessões, aumento da faixa de tecido ceratinizado e um excelente controle do biofilme. Diante da resolução do caso clínico apresentado, a técnica do enxerto gengival livre demonstrou um recobrimento parcial das raízes envolvidas e o aumento da faixa de gengiva inserida, corroborando com um menor acúmulo de biofi lme e facilidade de higienização pelo paciente.

Gingival recession defects may contribute to the occurrence of tooth sensitivity, root caries, development of cervical abrasions and aesthetic deficiency. The aim of this study was to report the treatment of multiple Miller class III gingival recessions in lower anterior mandibular region using the free gingival graft technique. The gingival recessions on teeth 31, 41, 42 were probably caused by the combination of a thin periodontal biotype and the presence of muscle insertions. After their removal, an epithelium-connective graft was carefully prepared to be accommodated at the recipient site. After twenty-four months of clinical proservation it was possible to observe partial coverage of these recessions, an increased keratinized tissue and excellent control of the biofilm by the patient. Given the resolution of the case presented, the free gingival graft technique showed partial root coverage and increase the attached gingiva, contributing to less biofi lm build-up and still facilitating patient hygiene procedures.

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O objetivo deste caso clínico foi mostrar que nem sempre alvéolos cicatrizados apresentam perda óssea na zona estética. Um paciente apresentou-se para tratamento queixando-se das proporções dentárias no sítio do incisivo lateral superior direito, há muito tempo. Curiosamente, os exames radiográfico e tomográfico não revelaram perda óssea suficiente para um enxerto de tecido duro. Desta forma, a abordagem consistiu apenas em realizar a coleta de enxerto gengival livre usando um bisturi circular no momento da instalação do implante dentário. Após a cicatrização, a configuração dos tecidos moles foi obtida pelos contornos da coroa provisória e reposicionamento da linha do término do pilar metálico. Na fase restauradora, o paciente recebeu uma coroa definitiva metalocerâmica. O acompanhamento clínico mostrou estabilidade dos níveis ósseos e gengivais. Embora casos como este sejam raros, principalmente em uma área onde a tábua óssea vestibular é muito fina e delicada, o diagnóstico imageológico preciso e os procedimentos subsequentes contribuíram para uma condução adequada, evitando que o paciente passasse por um número maior de cirurgias até que um resultado aceitável fosse obtido.

The purpose of this case report was to demonstrate that not always healed sockets have bone loss in the esthetic zone. One patient presented for treatment with a long-term complaint regarding the dental proportions at the site of the upper right lateral incisor. Surprisingly, the periapical and tomographic exams revealed no large bone loss indicative of hard tissue grafting. Thus, the approach was to collect only a free gingival graft using a circular scalpel at the time of dental implant placement. After healing, the new soft tissue confi guration was obtained by the temporary crown contours and repositioning of the metallic abutment prosthetic margins. In the restorative phase, the patient received a defi nitive metalloceramic crown. In the clinical follow-up, bone and gingival level stability was verifi ed. Although such cases are uncommon, particularly in the area where the buccal bone plate is very thin and delicate, precise diagnostic images and subsequent procedures contributed for appropriate treatment sequence, avoiding excessive surgical steps until an acceptable result be obtained.

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O objetivo desse trabalho foi apresentar o relato de uma paciente de 25 anos de idade, com queixa principal de desconforto à escovação e retração gengival classe II na região de canino inferior direito (43), e percepção de aumento progressivo da coroa dentária. Os elementos 42, 32 e 33 apresentavam retração classe I, mas sem mobilidade dentária. A falta de gengiva inserida no caso levou à necessidade de intervenção, optando-se pela técnica do enxerto gengival livre (EGL), por causa do desnudamento parcial da superfície radicular devido à migração apical da gengiva marginal. Na área receptora, um retalho misto foi realizado; na área doadora, o enxerto foi removido do palato contralateral (regiões 25-27), desepitelizado e suturado com fio reabsorvível. O retalho foi fechado com fio seda 4-0. O ganho de tecido queratinizado foi avaliado após seis meses e um ano. A estabilidade marginal gengival foi considerada excelente. O EGL favoreceu o controle do biofilme na região e, eventualmente, pode propiciar recobrimento radicular, devendo-se levar em conta as limitações estéticas desta técnica.

The objective of this study was to report a 25 years-old patient complaining of discomfort on tooth brushing having a class II gingival retraction at the mandibular right canine (43), with perception of progressive dental crown lengthening. The elements 42, 32, and 33 had class I retraction, but no tooth mobility. The lack of attached gingiva in this case led to the need for intervention using the free gingival graft technique (FGG), because of partial root surface denudation and apical migration of the gingival margin. At the recipient area, a mixed flap was developed, and at the donor area, the graft was removed from the contralateral palate (regions 25-27), de-epithelized, and stabilized with resorbable sutures. The mixed flap was closed with 4-0 silk sutures. The keratinized tissue gain was evaluated after six months and one year. The stability at gingival margins was considered excellent. The FGG favored biofilm control and may eventually provide root coverage taking into account the esthetic limitations of this technique.

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Introduction:Down Syndrome (DS) patients have increased susceptibility to the development of periodontal diseases by the occurrence of several factors, such as inadequate hygiene, mouth breathing, dental morphology, leukocyte reduction and increased inflammatory mediators. Objective:This study aimed to review the literature on the main aspects of DS and present a clinical case of a DS patient treated with basic periodontal therapy and free gingival graft surgery. Case report: DS patient, leucoderma, aged 26 years showed gingival recession and little amount of keratinized tissue in the area of teeth #31 and #41. After surgery, there was an increase in the keratinized tissue band. Conclusion: The free gingival graft surgery performed in DS patients was effective, as the increase of keratinized tissue band occurred.

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OBJECTIVE: To study the buccal dimensional tissue changes at oral implants following free gingival grafting, with or without including the keratin layer, performed at the time of implant installation into alveolar mucosa. MATERIAL AND METHODS: The mandibular premolars and first molars were extracted bilaterally in six Beagle dogs. In the right side of the mandible (Test), flaps were first elevated, and the buccal as well as part of the lingual masticatory mucosa was removed. An incision of the periosteum at the buccal aspect was performed to allow the flap to be coronally repositioned. Primary wound closure was obtained. In the left side, the masticatory (keratinized) mucosa was left in situ, and no sutures were applied (Control). After 3 months of healing, absence of keratinized mucosa was confirmed at the test sites. Two recipient sites were prepared at each side of the mandible in the region of the third and fourth premolars. All implants were installed with the shoulder placed flush with the buccal alveolar bony crest, and abutments were connected to allow a non-submerged healing. Two free gingival mucosal grafts were harvested from the buccal region of the maxillary canines. One graft was left intact (gingival mucosal graft), while for the second, the epithelial layer was removed (gingival connective tissue graft). Subsequently, the grafts were fixed around the test implants in position of the third and fourth premolars, respectively. After 3 months, the animals were euthanized and ground sections obtained. RESULTS: Similar bony crest resorption and coronal extension of osseointegration were found at test and control sites. Moreover, similar dimensions of the peri-implant soft tissues were obtained at test and control sites. CONCLUSIONS: The increase in the alveolar mucosal thickness by means of a gingival graft affected the peri-implant marginal bone resorption and soft tissue recession around implants. This resulted in outcomes that were similar to those at implants surrounded by masticatory mucosa, indicating that gingival grafting in the absence of keratinized mucosa around implants may reduce the resorption of the marginal crest and soft tissue recession.

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Avaliou-se comparativamente os sinais e sintomas pós-operatórios de enxertos gengivais livres (EGL) e de matriz dérmica acelular (MDA) em 22 pacientes que possuíam duas áreas com quantidade inadequada de mucosa ceratinizada na região de pré-molares inferiores de arcos homólogos, sendo que cada paciente foi submetido aos dois tipos de enxertos. A análise foi realizada por meio de respostas a um questionário de sinais e sintomas no pós-operatório imediato de 10 dias. Os resultados foram analisados estatisticamente pelo teste de McNemar, p < 0,05, para comparar as frequências relativas de cada ocorrência (dor, edema e sangramento) e também para analisar o sítio de escolha do paciente de maior sensibilidade dolorosa, demonstrando similaridade de sintomatologia nos sítios enxertados e eleição da área doadora de enxerto autógeno como a mais sensível. Com base nesses resultados pode-se concluir que a MDA quando utilizada como substituta dos EGL apresenta menor desconforto no pós-operatório por não necessitar de uma área cirúrgica adicional para remoção de tecido.

This clinical study compared the postoperative morbidity resulting of free gingival graft and acellular dermal matrix allografts. Twenty two patients with contralateral insufficient keratinized tissue were submitted to both grafts and answered a signals and symptoms questionnaire in the 10th immediate postoperative day. McNemar test, p < 0,05, was used to compare the relative frequency of pain, swelling, bleeding and to analyze the most sensible area in accordance with the patients. The postoperative sensibility of the receptor area was comparable in both groups and the donor area of free gingival graft was the most sensible. The results of this study suggest that acellular dermal matrix allografts can be used as free gingival graft substitute with less postoperative discomfort and it’s not necessary any additional site to remove autogenous tissue.

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Na implantodontia, para se obter posicionamento correto das próteses unitárias e mucosa peri-implantar satisfatória, necessita-se, na maioria dos casos, de inter-relação com as especialidades odontológicas como a ortodontia e a periodontia. Assim, a terapia ortodôntica auxiliar promove o reposicionamento de dentes migrados, contribuindo para uma oclusão satisfatória e permitindo o espaço adequado para reabilitações. Enxertos ósseos e gengivais também podem ser necessários para preparar um espaço adequado para a colocação de implantes. O caso clínico ilustra a verticalização do segundo molar e procedimentos de enxerto para colocação de implante unitário na área do primeiro molar inferior

In Implantodontology, the interrelation with other odontological specialties such as Orthodontics and Periodontology is necessary in most cases in order to obtain a correct positioning of single prosthesis as well as a satisfactory periimplantar mucosa. The auxiliary orthodontic therapy affords the repositioning of migrated teeth, contributing for a satisfactory occlusion and allowing adequate space for rehabilitation. Bone and gingival grafts can also be necessary in order to provide adequate space for placing implants. The presented clinic case illustrates the second molar uprighting and graft procedures for placing single-tooth implant in the inferior first molar area

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