Evaluation of Factors Associated with Occurance of Third Molar Pericoronitis: A Clinico-Radiographic Study
Keywords:pericoronitis, third molar, angulation, impaction
Introduction: Pericoronitis refers to inflammation of the gingiva in relation to the crown of a partially
erupted tooth. It mostly affects third molars. It may be acute, subacute or chronic.
Aims: To study the association of angular position of third molar and to evaluate predisposing factors
associated with occurrence of pericoronitis in third molars.
Materials and Methods: The sample consisted of 92 patients with 110 sites affected by pericoronitis.
Clinico-radiographic examination was carried out. Clinical findings consisted of age, sex, amount of
eruption, predisposing factors signs and symptoms. Radiographic examination was done to assess
angular position using Winter’s classification.
Statistical Analysis: By using Descriptive statistical analysis, findings were summarized using numbers
Results: The peak age of occurrence of third molar pericoronitis was 23-28 years with female
predominance. Mandibular molars were involved more commonly. Vertical positioned and partially
erupted third molars were most commonly affected by pericoronitis in both arches. Upper respiratory
tract infection was most frequently associated predisposing factor with periocoronitis.
Conclusion: Vertically positioned partially erupted third molars are more likely to be affected by from
pericoronitis. Considering high risk, early treatment should be rendered.