RESUMO
BACKGROUND: Peri-implant disease prevalence is associated with a multifactorial etiology and distinct clinical characteristics of inflammation. METHODS: The present study aimed to assess the prevalence of peri-implant diseases, identify related risk indicators, and associate specific clinical characteristics to peri-implant biological complications in the medium term. Peri-implant diseases were classified according to established case criteria. Patients' data, implant and/or prosthetic features, and maintenance records were collected. Clinical characteristics such as bleeding on probing (BOP), suppuration (SUPP), keratinized mucosa (KM), probing depth (PD), marginal recession (MR), and modified plaque index (mPI) were recorded. RESULTS: Ninety-nine patients with 266 implants with a mean functional duration of 30.26 months were evaluated. Peri-implant mucositis and peri-implantitis prevalence totaled to 49.5% and 15.15% (patient level), respectively. Peri-implant mucositis was associated with osteoporosis (odds ratio [OR] 6.09), age (OR 0.97), diabetes mellitus (OR 3.09), cemented-retained prosthesis (OR 3.81), and partial prosthesis (OR 2.21). Peri-implantitis was associated with osteoporosis (OR 7.74) and periodontitis (OR 2.74), cemented prosthesis (OR 10.12), partial and full arch prostheses (OR 12.35 and 19.86), implant diameter (OR 3.64), abutment transmucosal height (OR 3.39), and hygiene difficulty (OR 3.14). Furthermore, mPI score 3 (OR 3.27) and PD scores (OR 1.64) were associated with peri-implant mucositis, while mPI score 3 (OR 16.42), KM (OR 1.53), PD (OR 1.81), MR (OR 2.61), and the relationship between KM and PD (OR 0.63) were associated with peri-implantitis. CONCLUSION: In the medium term, peri-implant diseases were correlated with factors inherent to the patient's conditions, presurgical treatment plan, and hygiene maintenance care. The knowledge of the mentioned factors and featured clinical characteristics can be crucial for disease prevention and establishment of a superior implant therapy prognosis.
RESUMO
Maxillary permanent canines are the second most frequent cases of impacted teeth; their resolution demands a multidisciplinary evaluation to delineate a viable treatment plan based on the individual esthetic and functional outcomes required. An impacted maxillary permanent canine which was ankylosed in a horizontal position was extracted followed by a regeneration technique, filling the bone defect with biomaterial. An implant was immediately installed in the alveolus of the extracted deciduous canine, and a connective tissue graft was buccally positioned. After the osseointegration period, a modified Palacci and Nowzari surgical technique was performed to gain papilla, and the implant was loaded with an interim restoration with a proper profile to manipulate the soft-tissue contour. Finally, the definitive restauration was cemented achieving the desired outcomes. The achieved clinical outcomes remain stable during a 2-year follow-up. A successful management of this challenge esthetic case lies in the details at surgical and prosthetic phases based in biological response of the peri-implant tissues.
RESUMO
OBJECTIVES: The present retrospective study assessed the clinical performance of abutment screws from prefabricated metal abutments and compared technical complication rates between straight and angled abutments. MATERIALS AND METHODS: Dental charts were selected for patients with dental implant rehabilitations delivered between 1998 and 2012. Abutment angulation, prosthetic screw type, and presence of complications that occurred during the selected time period were collected. Technical complications registered included abutment screw loosening and/or fractures detected during clinical and radiographic examinations. The chi-square test was used for statistical analysis. RESULTS: Abutment angulations were divided into 2 groups: G1) prefabricated straight abutments and G2) prefabricated angled conical mini UCLA-type abutments. A total of 916 implants (799 straight and 117 angled conical mini UCLA-type abutments) were evaluated. G1 showed 91.1% had absence of failures, which were clinically defined as any screw loosening or fracture; and 8.9% reported some type of technical complication. G2 showed 92.3% and 7.7%, with and without technical complications, respectively. CONCLUSIONS: No significant differences were observed between abutment angulation and technical complications.
RESUMO
La utilización de implantes cortos para rehabilitar áreas con poca altura de reborde alveolar ha sido controversial y sus resultados aunque son promisores son preliminares, y se necesitan deresultados a largo plazo. Sin embargo, su tasa de éxito ha ido creciendo con el pasar de los años. El presente trabajo tiene como objetivo describir y discutir un relato de caso clínico sobre lautilización de implante curto en la región posterior de la maxila
The use of short implants to rehabilitate low-lying areas of the alveolar ridge has been controversial and the results are promising, though preliminary, and need long-term results. However, their success rate has been growing over the years. This paper aims to describe and discuss a clinical case report on the use of short implant in the posterior region of the maxil