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In a Southeast Iranian population, third molar impaction is highly prevalent and occurs significantly more often in females and in the mandible, with mesioangular and vertical angulations being the most common in the mandible and maxilla, respectively. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

December 9, 2012Medicina oral, patología oral y cirugía bucal260 citationsOpen Access

Incidence of impacted mandibular and maxillary third molars-a radiographic study in a Southeast Iran population

MHMaryam Alsadat HashemipourGeorge Washington University MTMehrnaz TahmasbiTexas A&M University FHFarnaz Fahimi HanzaeiKerman University of Medical Sciences

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Abstract

OBJECTIVES: The aim of this study is to evaluate the position of impacted third molars based on the classifications of Pell 35.1%) and females (380; 64.9%) (P = 0.0311). Data analysis showed that impacted third molars were 1.9 times more likely to occur in the mandible than in the maxilla (P =0.000). The most common angulation of impaction in the mandible was mesioangular impaction (48.3%) and the most common angulation of impaction in the maxilla was the vertical (45.3%). Impaction in the level IIA was the most common in both maxilla and mandible. There was no significant difference between the right and left sides in both the maxilla and the mandible. CONCLUSION: The pattern of third molar impaction in the southeast region of Iran is characterized by a high prevalence of impaction, especially in the mandible. Female more than male have teeth impaction. The most common angulation was the mesioangular in the mandible, and the vertical angulation in the maxilla. The most common level of impaction was the A and there was no any significant difference between the right and left sides in both jaws.

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