A survey assessing the knowledge and perception of dental practitioners on the need for prophylactic endodontic treatment in abutment teeth for fixed partial dentures.

Background: Tooth preparation for fixed prosthodontic procedures often induces enough thermal or mechanical stresses on the pulp. The extent of pulpal injury and ability to repair depends on factors like amount of remaining dentin, extent of heat produced, and permeability of dentinal tubules. However, there is no infallible method to predict the pulpal response and so the treatment outcome. Aim: This survey tries to assess the knowledge and perception among dental practitioners on the need for prophylactic endodontic therapy in abutment teeth for fixed partial denture (FPD). Setting and Design: Questionnaire-based survey. Methodology: An observational study was then conducted among 303 dental practitioners in the state of Tamil Nadu and 250 participants responded. Statistical Analysis Used: Descriptive statistics and multiple linear regression analysis. Results and Conclusion: The survey further imparts light on the clinical outcomes that help minimize the incidence of biological failure underneath a FPD.

An In Vitro Evaluation of Fracture Resistance of Endodontically Treated Maxillary Central Incisor Restored with Custom-Made Cast Post and Core with Uniform and Nonuniform Core Ferrule Heights.

AIM: The aim of this study was to evaluate in vitro fracture resistance of endodontically treated teeth restored with custom-made cast post and core having uniform and nonuniform core ferrule heights. MATERIALS AND METHODS: Thirty-five freshly extracted human maxillary central incisors were included in this study. All teeth were subjected to standard root canal treatment. The teeth were randomly divided into five groups-Group 1: uniform ferrule (2 mm buccal, lingual, and proximal), Group 2: uniform ferrule (3 mm buccal, lingual, and proximal), Group 3: nonuniform ferrule (2 mm buccal, 3 mm lingual), Group 4: nonuniform ferrule (2 mm buccal, 4 mm lingual), and Group 5: no ferrule. The teeth were sectioned horizontally 4 mm above cementoenamel junction and post space preparation was performed maintaining 4 mm of apical gutta-percha. Ferrule was prepared according to dimension designated for each group. Custom-made cast post and core were fabricated and luted using zinc phosphate cement. Testing was conducted using universal testing machine with application of static load (Newton), and failure load was recorded. Data were analyzed by one-way analysis of variance and Tukey test. The mode of fracture was noted by visual inspection for all specimens. RESULT: Significant differences (P < 0.001) were found among mean fracture forces of test groups. Group 1: 1181.66 ± 68.29, Group 2: 1455.58 ± 173.11, Group 3: 1019.00 ± 52.55, Group 4: 971.58 ± 66.52, and Group 5: 888.00 ± 60.56. The presence of nonuniform ferrule height resulted in a significant decrease (P < 0.0001) in mean fracture strength compared to uniform 2- and 3-mm core ferrule height. CONCLUSION: The central incisors restored with cast post and core and crowns with 3-mm uniform core ferrule were more fracture resistant compared to central incisors with nonuniform core ferrule height. Both the uniform and nonuniform core ferrule groups were more fracture resistant than the group that lacked ferrule.

Endodontic Management of Teeth Juxtaposed to Haemangioma.

Vascular anomalies are localized defects in the vasculature that may or may not be present at birth. There are many types of vascular anomalies with different aetiology and clinical picture and, therefore, require the combined expertise of medical, radiological, and surgical specialities for its diagnosis and management. The term "haemangioma" is used as a common generic label to incorporate all types of vascular malformations. In this report, we describe a case of two maxillary premolars, requiring endodontic therapy, in close proximity to a haemangioma. The challenges encountered in the diagnosis and management of the case are discussed.