Correlations of Alveolar Bone Surrounding Central Incisors in Adults

Abstract

To find correlations between alveolar bones of central incisors with gender, age, central incisor shape, dental arch shape, buccolingual inclination, and effective length of premaxilla/length of the mental protuberance. We selected 36 out of 308 CBCT patients’ cases (18 males & 18 females, aged 18-38 years), and measured crest height, plate thickness, and ridge width at 1) coronal third, 2) middle third, 3) apical third of the root. We identified significant differences between many sites of alveolar bones according to the abovementioned factors. Alveolar crest height was greater in males. In the mandible, alveolar bone was thinner than in the maxilla and the lingual plate at third 1 was thin (<1 mm) in most cases. We found: a) Moderate positive correlations: 1. In maxilla: Between crest height and age. Between buccal plate thickness and ELP. Between lingual plate thickness at third 2&3 and inclination. 2. In mandible: Between buccal crest height and age / LMP. Between buccal plate thickness at third 2&3, ridge width and inclination; b) Moderate negative correlations: 1. In maxilla: between buccal plate thickness, lingual plate thickness at third 1, and age. Between buccal plate thickness at third 3 and inclination. Between lingual plate thickness at third 3 and ELP. 2. In mandible: Between buccal plate thickness at third 3, lingual plate thickness, ridge width, and LMP. Between lingual plate thickness at third 1, ridge width at third 2&3, and age. No strong correlations were found between the alveolar bone and studied variables. However, this topic needs further studying.