Int J Stomatol

Int J Stomatol ›› 2024, Vol. 51 ›› Issue (5): 616-623.doi: 10.7518/gjkq.2024082

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Reseasch progress on external root resorption of second molars associated with impacted third molars

Zijian Pan(),Jian Pan()   

  1. State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Dept. of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
  • Received:2024-01-12 Revised:2024-06-20 Online:2024-09-01 Published:2024-09-14
  • Contact: Jian Pan E-mail:zijianpan@qq.com;jianpancn@163.com
  • Supported by:
    Research and Develop Program of West China Hospital of Stomatology, Sichuan University(LCYJ2019-1);Medical Science and Technology Project of Health Commission of Sichuan Province(21PJ062)

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Abstract:

Impacted third molars (M3) can result in lesions in adjacent structures, including external root resorption (ERR) of adjacent second molars (M2), which refers to the loss of hard tissue on the outer surface of the root. M2 ERR associated with adjacent impacted M3 can be asymptomatic until the involvement of pulp or even tooth loss. This review summarizes the research progress on the diagnosis, epidemiology, prognosis, and treatment methods of M2 ERR associa-ted with adjacent impacted third molars to provide information for dentists in the diagnosis and treatment of the disease and novel insights for future studies in this field. Results indicate that the direction of the impacted M3 and the contact between the impacted M3 and the adjacent M2 are important risk factors for M2 ERR associated with adjacent impacted M3. Moreover, the following factors should be comprehensively considered for the treatment of M2 ERR associated with adjacent impacted M3, including the degree of ERR, pulp involvement or other combined diseases of M2, utilization va-lue of M3, and personal situation of patients.

Key words: impacted teeth, the third molars, external root resorption

CLC Number: 

  • R780.2

TrendMD: 
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