Effects of Implant Angulation and Impression Coping Type on the Dimensional Accuracy of Impressions
- Authors
- Shim, Ji Suk; Ryu, Jae Jun; Shin, Sang Wan; Lee, Jeong Yol
- Issue Date
- 12월-2015
- Publisher
- LIPPINCOTT WILLIAMS & WILKINS
- Keywords
- transfer; pick-up; divergence
- Citation
- IMPLANT DENTISTRY, v.24, no.6, pp.726 - 729
- Indexed
- SCIE
SCOPUS
- Journal Title
- IMPLANT DENTISTRY
- Volume
- 24
- Number
- 6
- Start Page
- 726
- End Page
- 729
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/91706
- DOI
- 10.1097/ID.0000000000000336
- ISSN
- 1056-6163
- Abstract
- Purpose:To analyze the accuracy of impressions in relation to implant angulation and type of impression coping. Materials and Methods:Three metal master models with 2 implants of 3 different angulations (parallel, mesiodistal, and buccolingual) were fabricated. Nine groups of experimental models were fabricated to duplicate the 3 master models using 3 types of impression copings: transfer, pick-up, and hybrid. The distance between the analogs for each model was measured using a video measuring system. The influence of angulation and type of impression coping was analyzed by a two-way ANOVA (P < 0.05). Results:There were significant differences in error rates in relation to implant angulation and type of impression coping (P < 0.05). Impressions of buccolingually divergent implants with transfer copings showed statistically higher error rates than other groups (P < 0.05). Conclusions:Buccolingual divergence can be a variable that influences the impression accuracy of transfer copings compared with pick-up and hybrid copings. Hybrid copings demonstrate reasonable reproducibility similar to that of pick-up copings.
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Collections - College of Medicine > Department of Medical Science > 1. Journal Articles
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