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Clinical benefits of ridge preservation for implant placement compared to natural healing in maxillary teeth: A retrospective study

Authors
 Su‐Hyun Park  ;  Young Woo Song  ;  Ignacio Sanz‐Martín  ;  Jae‐Kook Cha  ;  Jung‐Seok Lee  ;  Ui‐Won Jung 
Citation
 JOURNAL OF CLINICAL PERIODONTOLOGY, Vol.47(3) : 382-391, 2020 
Journal Title
JOURNAL OF CLINICAL PERIODONTOLOGY
ISSN
 0303-6979 
Issue Date
2020
Keywords
bone augmentation ; dental implant ; extraction socket ; ridge preservation ; sinus augmentation
Abstract
AIM:

The purpose of this retrospective study was to determine clinical benefits of ridge preservation in terms of surgical invasiveness of implant placement compared to natural healing in the maxilla.

MATERIALS & METHODS:

This study included 178 patients with 206 implants placed at ridge-preserved sites and 493 patients with 656 implants placed at naturally healed sites in maxillary anterior and posterior regions. Patient- and implant-related data were collected from electronic dental records including additional augmentation procedures performed before or during implant placement and surgical complications. Cumulative survival rate was assessed using Kaplan-Meier method. The annual peri-implant marginal bone loss between the two groups was compared using the Mann-Whitney U test.

RESULTS:

The follow-up period was 24.4 ± 18.1 months (mean ± standard deviation) for ridge-preserved sites and 45.7 ± 29.6 months for naturally healed sites. Sinus augmentation was performed at similar frequencies in the two groups, but lateral approach was applied significantly more at naturally healed sites (37.2%) than ridge-preserved sites (8.3%, p ≤ .001). There was no intergroup difference in the cumulative survival rate or annual peri-implant marginal bone loss.

CONCLUSION:

Ridge preservation can be clinically beneficial for minimizing the invasiveness of implant surgery by simplifying the procedure when sinus augmentation is expected in the maxilla.
Full Text
https://onlinelibrary.wiley.com/doi/full/10.1111/jcpe.13231
DOI
10.1111/jcpe.13231
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Periodontics (치주과학교실) > 1. Journal Papers
Yonsei Authors
Park, Su‐Hyun(박수현)
Song, Young Woo(송영우) ORCID logo https://orcid.org/0000-0003-1835-5646
Lee, Jung Seok(이중석) ORCID logo https://orcid.org/0000-0003-1276-5978
Jung, Ui Won(정의원) ORCID logo https://orcid.org/0000-0001-6371-4172
Cha, Jae Kook(차재국) ORCID logo https://orcid.org/0000-0001-6817-9834
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/175498
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