Int J Stomatol

Inter J Stomatol ›› 2017, Vol. 44 ›› Issue (6): 686-690.doi: 10.7518/gjkq.2017.06.012

• Original Articles • Previous Articles     Next Articles

Measurement of the maxillary first molar area palatal side bone plate by cone-beam computer tomography and its clinical significance

Xu Xun, Huang Jiansheng, Gan Zekun, Luo Zhen.   

  1. Dept. of Special Clinic, Guangdong Provincial Stomatological Hospital, South Medical University, Guangzhou 510280, China
  • Received:2017-02-11 Revised:2017-06-25 Online:2017-11-01 Published:2017-11-01
  • Supported by:
    This study was supported by Science and Technology Planning Project of Guangdong Province(20100309) and Bureau of Health Care for Senior Officials of Guangdong Province(C2014037).

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Abstract: Objective Collected cone-beam computer tomography(CBCT) data, to provide anatomia basis for clinical application of implants in the maxillary first molar area palatal side bone by measuring the maxillary first molar area alveolar bone height and width along the vertical direction and the palatal transverse plate. Methods A total of 169 patients evaluated by CBCT scans were included in the date bank of Guangdong Provincial Stomatological Hospital were analyzed. Both height and width of the alveolar bone in the edentulous area of maxillary first molars and that of the alveolar bone of maxillary first molars were repeatedly measured three times every two weeks to get mean value. Results Mean alveolar bone height and width of the first molar was respectively 9.33 mm and 13.28 mm. Mean alveolar bone height and width of 90 patients with first molar loss was respectively 6.99 mm and 8.93 mm. There were 28 patients with less than 5.0 mm height of alveolar bone. With 3.5 mm, 4.0 mm and 4.5 mm respectively defined as the minimum width, compared with vertical direction, more bone mass were respectively obtained in 10 patients(35.7%), 9 patients(32.1%) and 6 patients(21.4%) when measuring in lateral direction of the palate. Conclusion With the maxillary first molar lost, more bone mass can be obtained in some patients along the lateral direction of the palate, which could provide basis for clinical application of implants in the maxillary first molar area palatal side bone.

Key words: cone-beam computer tomography, maxil-lary first molar, tooth implant, incline, measurement

CLC Number: 

  • R783.6

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