Effect of implant angulation on the accuracy of placing impression coping on implants with internal hex

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Nadeali Monireh; BAYANI MOJTABA; NAZARI VAHIDEH; MORADZADEH RAHMATOLLAH

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Journal Paper

Paper Information

Journal: Journal of Arak University Medical Sciences Year:2022 | Volume:24 | Issue:6 (154) Page(s): 868-877

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Information Journal Paper

Title

Effect of implant angulation on the accuracy of placing impression coping on implants with internal hex

Author(s)

Nadeali Monireh | BAYANI MOJTABA | NAZARI VAHIDEH | MORADZADEH RAHMATOLLAH | Issue Writer Certificate

Keywords

Dental implant

Dental impression

Implant abutment connection

Abstract

Background and Aim Different implant angulation, which is unavoidable in clinical situations, can affect the accuracy of impression. This study aims to investigate the effect of implant angulation on the accuracy of placing impression coping on implants with internal hex. Methods & Materials A gypsum model of 4 implants with internal hex connection was prepared. The implants were installed in different mesiodistal angles of 0, 15, 25 and 35 degrees to the longitudinal axis in the gypsum model. To simulate the gums, a gingival material was injected around the implant analog with a height of 2 mm. After a training session for senior dental students on how to place the impression coping, 40 students were volunteered to place the impression copings on four implants. The accuracy of impression coping placement was evaluated by a prosthodontist. Data were statistically analyzed using Cochran Q test. Significance level was set at 0. 05. Ethical Considerations This study was approved by the ethics committee of Arak University of Medical Sciences (Code: IR. ARAKMU. REC. 1397. 283). Results The percentage of correct impression coping placement on the implants at angles of 0, 15, 25 and 35 degrees was 85%, 72%, 52%, 35%, respectively. Except for implants at 0 and 15 degrees, a statistically significant difference was observed between different groups of implant angulation. Conclusion The implant angulation has a significant effect on the accuracy of impression coping placement on the implants with internal hex,by increasing the implant angulation, the accuracy of impression coping placement decreases.

Cites

Cone-Beam computed tomography based evaluation of mandibular lingual foramina and incisive canal in Selected Iranian population

References

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APA: Copy

Nadeali, Monireh, BAYANI, MOJTABA, NAZARI, VAHIDEH, & MORADZADEH, RAHMATOLLAH. (2022). Effect of implant angulation on the accuracy of placing impression coping on implants with internal hex. ARAK MEDICAL UNIVERSITY JOURNAL (AMUJ), 24(6 (154) ), 868-877. SID. https://sid.ir/paper/1008788/en

Vancouver: Copy

Nadeali Monireh, BAYANI MOJTABA, NAZARI VAHIDEH, MORADZADEH RAHMATOLLAH. Effect of implant angulation on the accuracy of placing impression coping on implants with internal hex. ARAK MEDICAL UNIVERSITY JOURNAL (AMUJ)[Internet]. 2022;24(6 (154) ):868-877. Available from: https://sid.ir/paper/1008788/en

IEEE: Copy

Monireh Nadeali, MOJTABA BAYANI, VAHIDEH NAZARI, and RAHMATOLLAH MORADZADEH, “Effect of implant angulation on the accuracy of placing impression coping on implants with internal hex,” ARAK MEDICAL UNIVERSITY JOURNAL (AMUJ), vol. 24, no. 6 (154) , pp. 868–877, 2022, [Online]. Available: https://sid.ir/paper/1008788/en

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