Shanghai Journal of Stomatology ›› 2021, Vol. 30 ›› Issue (6): 658-662.doi: 10.19439/j.sjos.2021.06.019

• Clinical Reports • Previous Articles     Next Articles

Clinical dynamic study of jaw cyst after decompression

DU Yue, PENG Xiao, HAN Rui, WANG Dong, HU Jie, GAO Ting-yi, ZHANG Kai   

  1. Department of Stomatology, First Affiliated Hospital of Bengbu Medical College. Bengbu 233000, Anhui Province, China
  • Received:2021-02-23 Revised:2021-05-20 Published:2022-03-09

Abstract: PURPOSE: To observe the dynamic characteristics of odontogenic mandibular cyst after decompression, and analyze the treatment results. METHODS: Data of patients with odontogenic cyst of mandible confirmed in our hospital from June 2017 to June 2019 who underwent decompression were collected, and analyzed retrospectively. Cone-beam CT(CBCT) were taken before and after operation. Three-dimensional reconstruction was conducted using E3D modeling software. The contraction direction of the cyst cavity, contraction speed of the cyst cavity and its relationship with age and time were analyzed with SPSS 21.0 software package. RESULTS: The cysts of the mandibular body mostly contracted with the largest diameter as the axis. After decompression, the cystic cavity contracted in an elliptical shape. The contraction rate of cystic cavity from small to large was as followed: odontogenic keratocysts, apical cyst, and dentigerous cyst. The contraction speed was negatively correlated with time and age, and the contraction speed slowed down significantly after 12 months. CONCLUSIONS: The effect of fenestration decompression in the treatment of mandibular odontogenic cysts is related to time, age and pathological type. It is recommended to deal with in a timely manner according to the characteristics of the cyst changes.

Key words: Odontogenic cysts, Cone-beam CT, Decompression, E3D

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