Oral manifestations and challenges in dental treatment of epidermolysis bullosa dystrophica.

Epidermolysis bullosa (EB) is a rare congenital disease characterized by the formation of blisters following minimal trauma. Oral health can be compromised by oral bullae, perioral fibrosis, ankyloglossia, and a high risk for dental caries, all of which lead to a decreased quality of life. The purpose of this paper is to report the case of an 11-year-old female who presented with autosomal recessive dystrophic EB. Besides the skin manifestations, the extra- and intra-oral exams revealed lesions on the lips and mucosa, microstomia, ankyloglossia, depapillated tongue, and carious teeth. This case emphasizes that patients diagnosed with EB require multidisciplinary care, with the dentist playing an important role in oral health management.

Ex vivo study of manual and rotary instrumentation techniques in human primary teeth.

OBJECTIVE: This study aimed to evaluate, ex vivo, time and dentin removal by manual and rotary instrumentation in human primary teeth. STUDY DESIGN: Eighty primary teeth were divided into 2 groups, embedded in resin, and sectioned for evaluation before and after instrumentation. For manual technique, teeth were prepared using K-type files and rotary preparation was performed with Hero 642. All root canals were prepared up to size 40, and the instrumentation time was recorded. Dentin removal was calculated using digital image software. Data was statistically analyzed using chi-squared, Mann-Whitney, and t tests. RESULTS: Manual instrumentation removed more dentin in all groups compared with rotary instrumentation (P < .05). In some specimens, root perforations were observed in areas coinciding with largest root resorption. Rotary technique showed the shortest instrumentation time (P < .05). CONCLUSIONS: Deciduous teeth, without significant root resorption, have enough root structure for instrumentation up to size 40. Rotary technique required less time and generated less dentin removal.