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Distal cervical caries in second molars associated with impacted mandibular third molars: a case-control study
Olabisi H Oderinu1, Wasiu L Adeyemo, Michael O Adeyemi
1Lecturer, Department of Restorative Dentistry, Faculty of Dental Sciences, College of Medicine, University of Lagos, Lagos, Nigeria.
Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
|September 18, 2012
Summary
Impacted mandibular third molars significantly increase the risk of distal cervical caries in adjacent second molars. Fully erupted third molars showed no such association, highlighting the importance of monitoring impacted teeth for caries development.
Area of Science:
- Dentistry
- Oral Health
- Cariology
Background:
- Cervical caries in mandibular second molars can be influenced by adjacent third molars.
- The relationship between third molar eruption status and second molar caries is not fully understood.
Purpose of the Study:
- To compare the incidence of cervical caries in mandibular second molars associated with impacted third molars versus fully erupted third molars.
Main Methods:
- A comparative study design was employed.
- Participants were divided into two groups: those with impacted third molars adjacent to second molars (study group) and those with fully erupted third molars adjacent to second molars (control group).
- Incidence of cervical caries on the second molar and other variables were recorded and analyzed.
Main Results:
- The incidence of distal cervical caries in the study group was 15.7%, with no cases observed in the control group (P = .000).
- The Decayed, Missing, or Filled (DMF) score was significantly lower in the study group compared to the control group (P = .000).
- Distal cervical caries incidence increased with subject age and DMF scores (P ≤ .05).
Conclusions:
- Distal cervical caries in second molars is specifically associated with impacted mandibular third molars.
- The findings suggest that impacted third molars are a significant risk factor for developing cervical caries in adjacent second molars.
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