IADR Abstract Archives
Prevalence of M2M Distal Caries and other Pathologies Related To Impacted Mandibular Third Molar: a Retrospective Study of 801 Clinical Records
Objectives: This study aimed at determining the prevalence of M2M distal caries (DC) and other pathologies associated with the impacted mandibular third molar (M3M) based on panoramic radiographs.
Methods: We reviewed 801 patients’ clinical files among the 4939 investigated between 2012 and 2014 at F. Bourguiba Teaching Hospital, Monastir, Tunisia. The following data were recorded: patients’ demography, reason for consultation, M3M inclination, depth and relation with the ramus, angulation with M2M, maturity, and presence of M2M DC. Radicular resorption (RR), radioluscent periapical lesion (RPL) and alveolar bone resorption (ABR) were also recorded. Results were reported as mean±SD and percentages. Chi2 test and linear logistic regression were used to correlate qualitative data. The level of significance was set at p<0.05.
Results: Patients’ age varied from 18 to 89 years with a mean of 29.69±35.5 years. The female to male sex ratio was 1.38. The number of M3M and M2M couples was 1403. Of these, 75.2% were bilateral. Most patients consulted for symptomatic M3M (55%). More than half of the M3Ms were in a vertical position (59.9%). Mesial, horizontal and distal inclinations were seen in 21.7%, 13.8% and 4.1%, respectively. Nearly 50% (49.9%) of M3Ms belonged to Class A with type 2 ramal relation (68.2%). M2M DC was the most seen pathology (24.2%), followed by ABR (23.6%) and RR (21.7%). Our results revealed a significant relation between M2M DC and M3M mesial position (p=.000), angulation (41°-80°, p=.000), and depth (Cl B, p=.006).
Conclusions: The present study shows that M2M DC is the most common pathology associated with M3M mesial position, angulation and depth.
Methods: We reviewed 801 patients’ clinical files among the 4939 investigated between 2012 and 2014 at F. Bourguiba Teaching Hospital, Monastir, Tunisia. The following data were recorded: patients’ demography, reason for consultation, M3M inclination, depth and relation with the ramus, angulation with M2M, maturity, and presence of M2M DC. Radicular resorption (RR), radioluscent periapical lesion (RPL) and alveolar bone resorption (ABR) were also recorded. Results were reported as mean±SD and percentages. Chi2 test and linear logistic regression were used to correlate qualitative data. The level of significance was set at p<0.05.
Results: Patients’ age varied from 18 to 89 years with a mean of 29.69±35.5 years. The female to male sex ratio was 1.38. The number of M3M and M2M couples was 1403. Of these, 75.2% were bilateral. Most patients consulted for symptomatic M3M (55%). More than half of the M3Ms were in a vertical position (59.9%). Mesial, horizontal and distal inclinations were seen in 21.7%, 13.8% and 4.1%, respectively. Nearly 50% (49.9%) of M3Ms belonged to Class A with type 2 ramal relation (68.2%). M2M DC was the most seen pathology (24.2%), followed by ABR (23.6%) and RR (21.7%). Our results revealed a significant relation between M2M DC and M3M mesial position (p=.000), angulation (41°-80°, p=.000), and depth (Cl B, p=.006).
Conclusions: The present study shows that M2M DC is the most common pathology associated with M3M mesial position, angulation and depth.