含歯性嚢胞における関連埋伏歯とその萌出に関する研究

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  • A STUDY OF THE IMPACTED TOOTH ASSOCIATED WITH DENTIGEROUS CYST

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type:Article

The purpose of this study was to investigate factors of the eruption of the impacted tooth associated with dentigerous cyst. Seventy dentigerous cysts were retrospectively examined using clinical charts, normalized panoramic radiographs and histological materials. Roentgenographically, we investigated root maturity, cusp depth and angulation of the cyst-associated tooth, cyst area, eruption space and eruption period. Moreover, the degree of inflammatory cellular infiltration at cyst wall was investigated histologically. After marsupialization, 47 impacted teeth (25 males, 22 females, average age 10.5 years) had been erupted successfully, while 23 (15 males, 8 females, average age 13.3 years) had not been erupted and uridergone traction or cystectomy. The results indicate that the eruption of cyst-associated tooth was significantly correlated with root maturity, cusp depth, angulation, eruption space and the degree of inflammatory cellular infiltration (p＜0.05). The eruption of the mandibular premolar was significantly correlated with age, cusp depth and angulation, and the maxillary canine was correlated with age and cyst area (p＜0.05). We suggest that these data contribute to a guideline for treatment of the impacted tooth in dentigerous cyst.

identifier:Journal of Nara Medical Association Vol.52 No.6 p.229-235

identifier:13450069

identifier:http://ginmu.naramed-u.ac.jp/dspace/handle/10564/685

identifier:Journal of Nara Medical Association, 52(6): 229-235

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