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Investigation of periodontal status and bacterial composition aroundmini-implants.
Huang, Rui; He, Yin-Xue; Jia, Xue-Ting; Liu, Ji-Nan; Fan, Xiao-Chuan; Zeng, Na; Huang, Xiao-Feng.
Affiliation
  • Huang R; Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
  • He YX; Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
  • Jia XT; Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
  • Liu JN; Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
  • Fan XC; Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
  • Zeng N; National Institute on Drug Dependence and Beijing Key Laboratory of Drug Dependence, and School of Public Health, Peking University, Beijing, China.
  • Huang XF; Department of Stomatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China. Electronic address: huangxf1998@163.com.
Am J Orthod Dentofacial Orthop ; 164(1): 116-122, 2023 Jul.
Article in En | MEDLINE | ID: mdl-36858877
INTRODUCTION: Mini-implants are now widely used in orthodontic treatment. Soft-tissue inflammation around the mini-implant is an important factor affecting its stability. This study aimed to investigate the periodontal status and the bacterial composition around mini-implants. METHODS: A total of 79 mini-implants in 40 patients (aged 18-45 years) were evaluated in this study. The mini-implant probing depth (mPD), mini-implant gingival sulcus bleeding index (mBI), mini-implant plaque index (mPLI), and the composition of the supragingival and subgingival plaque around the mini-implants were recorded. After Congo red staining, the bacteria were classified and counted under a light microscope. RESULTS: The mPLI and mBI around mini-implants in the infrazygomatic crest were higher than those in the buccal shelf and interradicular area. The mPD was higher on the coronal site of the mini-implant than on the mesial, distal, and apical sites in the infrazygomatic crest. The mPLI around the mini-implant was positively correlated with the mBI, and the mBI was positively correlated with the mPD. The supragingival and subgingival bacterial composition around the mini-implants was similar to that of natural teeth. Compared with supragingival bacterial composition, the subgingival bacteria of mini-implants had a significantly lower proportion of cocci and a higher proportion of bacilli and spirochetes. CONCLUSIONS: The bacteria composition of the plaque and the location are important factors in the inflammation around mini-implants. Similar to natural teeth, mini-implants require health maintenance to prevent inflammation of the surrounding soft tissue and maintain stability.
Subject(s)

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Tooth / Dental Implants / Dental Plaque Limits: Humans Language: En Journal: Am J Orthod Dentofacial Orthop Journal subject: ODONTOLOGIA / ORTODONTIA Year: 2023 Document type: Article Affiliation country: China Country of publication: United States

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Tooth / Dental Implants / Dental Plaque Limits: Humans Language: En Journal: Am J Orthod Dentofacial Orthop Journal subject: ODONTOLOGIA / ORTODONTIA Year: 2023 Document type: Article Affiliation country: China Country of publication: United States