Study of position and eruption of lower third molars in adolescents
Journal Title: RSBO - Year 2011, Vol 8, Issue 4
Abstract
Introduction: The occurrence of retained lower third molars (3M) is common. A careful analysis is necessary for proper clinical management and the radiographic examination is fundamental. The use of panoramic radiographs is extremely important for the analysis and classification of 3M position, allowing the diagnosis and the establishment of the treatment planning for the removal of these teeth. Objective: The aim of this study was to evaluate the changes in position and eruption state of lower 3M during a period of 3.6 years, as well as to identify factors that may be related with early diagnosis of dental retention of these teeth in adolescent patients. Material and methods: One hundred and one initial (T1) and final (T2) panoramic radiographs from patients treating at the university’s orthodontic clinics were analyzed. The distribution of 195 lower 3Ms was evaluated taking into account personal data, collected from clinical records. The data obtained in relation to the positioning of the teeth were based on the ratings of Winter and Pell & Gregory. Results: The results showed that vertical position was the most prevalent and the C level and class II positions were predominant. The changes occurring in 3M position during the study interval were not statistically significant. Conclusion: After the final evaluation (T2) it was concluded that unpredictable changes in lower 3Ms position and eruption may occur. The variables race (P = 0.03) and anterior border of the mandibular ramus (P = 0.007) seem to have influence on the level of eruption, also suggesting influence on this tooth retention within dental arches over the years.
Authors and Affiliations
Eduardo Vilela, Paula Vitoi
Keywords
Related Articles
- EP ID EP108336
- DOI -
- Views 148
- Downloads 0
Focus groups: a strategy for health research
Introduction: The research strategy through open interviews is a qualitative alternative that can capture the meaning embedded in opinions expressed, revealing values and feelings of the research subjects. As a construct...
Filling of simulated lateral canals using different obturation techniques: analysis through IDA digital radiograph system
Introduction: Lateral canals are part of the root canal system and may be related to periodontal-endodontic diseases. The filling techniques that employ thermoplasticized gutta-percha have demonstrated better resu...
Bone healing in titanium and zirconia implants surface: a pilot study on the rabbit tibia
Introduction: Zirconia has been considered an alternative material to titanium for implant manufacturing, however the mechanisms regarding to bone healing in presence of zirconia implants remains poorly known. Obje...
Chronic graft versus host disease: a scleroderma-like case report
Introduction: Chronic graft versus host disease (cGVHD) is the most common consequence of allogeneic bone marrow transplantation, and it is associated with morbidity and mortality. Oral manifestations are diagnosed in ap...
Single-cone obturation technique: a literature review
Introduction: The technique of single-cone obturation is a technique that uses only the master cone. There have been an increase in its use, especially by employing larger cones with larger taper sizes that best ma...