Anatomic analysis of the infrazygomatic crest width

Abstract

Abstract: PURPOSE : Using dental 3D-CT to analyse the infrazygomatic crest width. METHODS : In 21 orthodontic patients, infrazygomatic crest width was measured and analyzed in 41 CT images of the maxillary first molar root. SPSS16.0 software package was used for statistical analysis. The infrazygomatic crest width and first molar root length were compared in gender, left and right side, in mesial and distal buccal root side, to determine of there was a significant difference. RESULTS : The anatomical structure of infrazygomatic crest was bone structure with great variation. Individual difference existed in the thickness of infrazygomatic crest. There was no significant difference between sex and right and left side. As the measurement moved cranially, infrazygomatic crest width decreased gradually. Significant difference existed in first molar root length between male and female, the root length was significantly longer in male than in female. CONCLUSIONS : Individual differences existed in the width of infrazygomatic crest. Measurement and analysis of the infrazygomatic crest width is needed in this region before inserting orthodontic miniscrews.

Key words: Infrazygomatic crest, Cone-beam CT, Miniscrew

CLC Number:

R782.1

WU Jun, CHEN Zhen-qi. Anatomic analysis of the infrazygomatic crest width[J]. China Journal of Oral and Maxillofacial Surgery, 2014, 12(6): 521-524.

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