DOI: 10.5176/2251-2489_BioTech43
Authors: Seung-Pyo Lee, Jun-Hyun An, Tae-Il Kim, Joo-Hoon Lee and Jung-Wook Kim
Abstract: In edentulous patients mental foramen‘s position determines surgical procedures for implant placement. One-hundred-thirty-two dry, adult, Korean mandibles were obtained from an anatomy collection and were 3-dimensionally scanned and reconstructed for analysis. The mandibleswere grouped by mandibular anterior ridge shapes. Dentulous type I (58); post-extraction with socket type II (48); residual ridge type III (26). The surface distance from mesial point of mental foramen, the angle of the two points and midsymphysis and the width of mandibular angle was measured. There were significant statistical difference in surface distance between mental foramina between Type II and III (ANOVA, P<0.05). All measured items were statistically correlated with each other (Pearson's correlation coefficient test, P<0.05). The data shows the shortest surface distance between mental foramina and straight width of mandible was Type III which seems to be influenced by alveolar bone resorption due to long period of tooth missing, old age and chewing problem. However, Type III can also provide enough space for five 4mm diameter dentalimplants which is sufficient for mandibular overdentures.
Keywords: mental foramen; 3-dimensional model; 3-dimensional scanning; dental implant
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