RESUMEN

BACKGROUND: A pediatrician is supposed to be one of the first clinician who sees a child from infancy through adolescence. This study was carried for pediatricians serving in medical colleges and tertiary hospitals in Bhubaneswar City, Odisha, India. MATERIALS AND METHODS: A questionnaire was distributed among 30 pediatricians serving in various medical colleges and tertiary hospitals in Bhubaneswar City area. It consisted of questions regarding knowledge of pediatricians on the awareness of detrimental effects of long-term liquid medicaments use on oral cavity, including delivery of oral hygiene instructions and regular dental checkup. The data as obtained were subjected to statistical analysis using Statistical Package for the Social Sciences (SPSS) software, version 17.0, for Microsoft Windows (Chicago, Illinois). RESULTS: The results showed that there is a good amount of awareness among the pediatricians working in medical colleges in Bhubaneswar regarding pediatric liquid medication and their ill effects on teeth. Most pediatricians considered age and body weight of the child (87%). Sixty five percent of pediatricians were aware that pediatric liquid medication (PLM) can cause dental caries. Ninety five percent of them were aware of PLMs with sugar substitutes are available in market. CONCLUSION: The overall awareness among the pediatricians regarding the ill effects of pediatric liquid medications on teeth is satisfactory.

RESUMEN

INTRODUCTION: Coronal leakage is one of the constant concerns in routine dental practice. It is one of the factors responsible for the failure of root canal therapy. Permanent restorations should be given as soon as possible after the completion of root canal therapy. If unavoidable, provisional restoration should be given in such a way that it maximally reduced the leakage of microorganisms and fluids from the external environment into the canal space. Hence, we evaluated the effect of saliva on the coronal leakage of temporary restorations. MATERIALS AND METHODS: Biomechanical preparation of the root canals of 204 fresh mandibular first premolar teeth was done using endodontic files with intermittent irrigation of sodium hypochlorite solution and ethylenediaminetetraacetic acid. Alternate irrigation with normal saline was done periodically. After preparation, drying of the canals was done using paper points followed by sealing of the apical foramen. For the assessment of the microleakage, Siqueira et al apparatus and method was used. All the specimens were divided into four groups based on the provisional restorative material used. All the groups were further divided into three subgroups based on the presence and absence of intracanal medicaments. Verissimo et al's criteria were used to check the turbidity at 1-, 2-, 3-, and 4-week interval respectively. All the results were analyzed by Statistical Package for the Social Sciences (SPSS) software. Chi-square test was used to measure the level of significance, and p < 0.05 was considered to be significant. RESULTS: In group I, all the subgroups' specimens showed significant difference at 1 week's time. Only the subgroup with no intracanal medicaments in Cavit-containing provisional restoration showed nonsignificant alterations. Statistically significant alterations were seen at 1, 2, and 3 weeks' interval in all the subgroups except for one with intracanal medicaments. CONCLUSION: All the temporary restorative materials were not able to prevent microleakage after 1 week's time, with worst bacterial resistance shown by Ketac Molar and ionomer restorative material. Future studies are advocated for better prognosis of root canal therapy.

Asunto(s)

Cementos Dentales/uso terapéutico , Filtración Dental/clasificación , Restauración Dental Provisional , Tratamiento del Conducto Radicular , Diente Premolar , Sulfato de Calcio , Distribución de Chi-Cuadrado , Cavidad Pulpar/microbiología , Ácido Edético/uso terapéutico , Cementos de Ionómero Vítreo/uso terapéutico , Humanos , Mandíbula , Ensayo de Materiales , Metilmetacrilatos , Polivinilos , Materiales de Obturación del Conducto Radicular/química , Irrigantes del Conducto Radicular/uso terapéutico , Obturación del Conducto Radicular/métodos , Preparación del Conducto Radicular/métodos , Saliva , Hipoclorito de Sodio , Temperatura , Ápice del Diente , Óxido de Zinc , Cemento de Óxido de Zinc-Eugenol

RESUMEN

AIM AND OBJECTIVES: Acrylic teeth are used for fabrication of dentures. Debonding of tooth - denture base bond is routine problem in dental practice. The aim of this study was to comparatively evaluate failure load of acrylic resin denture teeth bonded to three different heat resin. MATERIALS AND METHODS: Four groups were created out of test samples central incisors (11). Group I: Control, whereas Group II, Group III and Group IV were experimental groups modified with diatoric hole, cingulum ledge lock and Teeth modified with both diatoric hole and cingulum ledge lock, respectively. These test specimens with 3 teeth (2 central [11, 21] and 1, lateral [12] incisors) positioned imitating arrangement of teeth in the conventional denture, prepared by three different heat cure materials (DPI, Trevalon, Acralyn-H). A shear load was applied at cingulum of central incisor (11) at 130° to its long axis using universal tester at a cross head speed of 5 mm/min until failure occurred. Failure load test was conducted and statistical analysis was performed using SPSS 16 software package (IBM Company, New York, U.S). RESULTS: Highest failure load was seen in Group IV specimens, prepared by Trevalon but did not significantly differ from that of DPI. CONCLUSION: The failure load of bonding denture teeth to three different heat cure materials was notably affected by modifications of ridge lap before processing. The specimens with a combination of diatoric hole and cingulum ledge lock, prepared by Trevalon showed highest failure load but did not significantly vary from that of DPI. The control group prepared by Acralyn-H showed lowest failure load but did not significantly differ from that of DPI.

RESUMEN

BACKGROUND AND OBJECTIVES: Endodontic sealer is currently regarded with such importance in the root canal treatment that it is often considered to be more important than the core obturating material itself. Sealer with the least film thickness is favorable for minimizing microleakage. The aim of the study is to compare sealer distribution in root canal using three different sealers with three different obturation techniques. MATERIALS AND METHODS: AH plus, Fuji-1, Tubliseal Extended Working Time (EWT) was placed into the prepared root canals of 90 maxillary central incisors using a lentulospiral. Thereafter, the canals were obturated using three different gutta-percha root filling techniques (single cone, lateral condensation, vertical condensation). Horizontal sectioning was carried out at 3 mm and 6 mm from the apex with a diamond disk. The two specimens thus obtained were examined for sealer distribution using a stereomicroscope and the percentage of sealer coating the perimeter (PSCP) was calculated using a digital imaging system. RESULTS: A significant difference existed in the mean PSCP values of three different sealers (P < 0.000), where Tubliseal (EWT) had the highest PSCP values followed by the AH plus and Fuji-1. Also, between techniques, differences were observed (P < 0.00), where a single cone technique had the highest mean values followed by lateral condensation and vertical condensation. Between the 3 mm and 6 mm sections a non-significant difference was observed (P < 0.945). CONCLUSION: Tubliseal EWT showed highest PSCP value and Single cone technique showed the higher PSCP value then lateral and vertical condensation technique at 3 mm and 6 mm sections.