Related Experiment Video
Updated: May 4, 2026

The Establishment of a Murine Mandibular Molar Extraction Socket Healing Model
Published on: January 13, 2023
Accidents and complications associated to third molar surgeries performed by dentistry students
Marcelo Rodrigues Azenha1, Rogerio Bentes Kato, Renan Barros Lima Bueno
1Faculdade de Odontologia de Ribeirão Preto (FORP), Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil, marceloazenha@usp.br.
Objective:
The aim of this work is to demonstrate the accidents and complications rates on third molars surgeries performed by senior dentistry students.
Methods:
A retrospective study of 122 patient charts submitted to third molars surgeries was done. Patient age, gender, dental in arch position, and accidents/complications were considered with the charts presenting incomplete dates being excluded from the study. After all, 88 patients (210 surgeries) were included.
Results:
The majority of the patients were female (70.4 %), with the average age of 24 years. Mandibular molars represented more than half of the surgical procedures (56.2 %), with teeth at vertical position the most found (60.3 %). The cases of accidents and complications totalized 10.4 % of all performed procedures, being hemorrhage (1.9 %), root fractures (1.9 %), and maxillary tuberosity fracture (1.9 %) the most found. Suture dehiscence (1.4 %), dry socket (1.4 %), oroantral communications (0.9 %), paresthesia (0.9 %), and infection (0.4 %) were also observed.
Conclusions:
Surgeons' inexperience was not considered a determinant factor to modify the rates of accidents and complications at third molars surgeries when compared to previous works developed by experienced surgeons. It is important to highlight the necessity of the students' knowledge of the most adequate treatments of each of the accidents and complications.
Related Concept Videos
Teeth
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
Aneurysm III: Interprofessional Care
Tooth Anatomy
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...
Torts III
Quasi-intentional torts in healthcare involve acts where intent is not directed to harm an individual but results in harm due to careless or reckless speech.
Tonsillitis II: Management
Complications of Diabetes Mellitus