Influence of Alveolar Ridge Morphology and Guide-hole Design on the Accuracy of Static Computer-Assisted Implant Surgery with two Implant Macro-designs: An in Vitro Study.

Dulla, Fabrice Alain; Couso-Queiruga, Emilio; Chappuis, Vivianne; Yilmaz, Burak; Abou-Ayash, Samir; Raabe, Clemens (2023). Influence of Alveolar Ridge Morphology and Guide-hole Design on the Accuracy of Static Computer-Assisted Implant Surgery with two Implant Macro-designs: An in Vitro Study. Journal of dentistry, 130(104426), p. 104426. Elsevier Science 10.1016/j.jdent.2023.104426

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OBJECTIVES

The primary aim of this in vitro study was to evaluate the influence of alveolar ridge morphologies on the accuracy of static Computer-Assisted Implant Surgery (sCAIS). The secondary aims were to evaluate the influence of guide-hole design and implant macro-design on the accuracy of the final implant position.

METHODS

Eighteen standardized partially edentulous maxillary models with two different types of alveolar ridge morphologies were used. Each model was scanned via cone beam computer tomography prior to implant placement and scanned with a laboratory scanner prior to and following implant placement using sCAIS. The postsurgical scans were superimposed on the initial treatment planning position to measure the deviations between planned and postsurgical implant positions.

RESULTS

Seventy-two implants were equally distributed to the study groups. Implants placed in healed alveolar ridges showed significantly lower mean deviations at the crest (0.36 ± 0.17 mm), apex (0.69 ± 0.36 mm), and angular deviation (1.86 ± 0.99°), compared to implants placed in fresh extraction sites (0.80 ± 0.29 mm, 1.61 ± 0.59 mm, and 4.33 ± 1.87°; all p<0.0001). Implants placed with a sleeveless guide-hole design demonstrated significantly lower apical (1.02 ± 0.66 mm) and angular (2.72 ± 1.93°) deviations compared to those placed with manufacturer's sleeves (1.27 ± 0.67 mm; p=0.01, and 3.46 ± 1.9°; p=0.02). Deep-threaded tapered bone level implants exhibited significantly lower deviations at the crest (0.49 ± 0.28 mm), apex (0.97 ± 0.63 mm), and angular deviations (2.63 ± 1.85°) compared to shallow-threaded parallel-walled bone level implants (0.67 ± 0.34 mm; p=0.0005, 1.32 ± 0.67 mm; p=0.003, and 3.56 ± 1.93°; p=0.01).

CONCLUSIONS

The accuracy of the final implant position with sCAIS is determined by the morphology of the alveolar ridge, the design of the guide holes, and the macrodesign of the implant.

CLINICAL SIGNIFICANCE

Higher accuracy in the final implant position was observed with implants placed in healed alveolar ridge morphologies, in implants with deep-threaded tapered macro-design, and when sleeveless surgical guide holes were used.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Preventive, Restorative and Pediatric Dentistry
04 Faculty of Medicine > School of Dental Medicine > Department of Reconstructive Dentistry and Gerodontology
04 Faculty of Medicine > School of Dental Medicine > Department of Oral Surgery and Stomatology

UniBE Contributor:

Dulla, Fabrice Alain, Couso-Queiruga, Emilio, Chappuis, Vivianne, Yilmaz, Burak, Abou-Ayash, Samir, Raabe, Clemens

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0300-5712

Publisher:

Elsevier Science

Language:

English

Submitter:

Pubmed Import

Date Deposited:

25 Jan 2023 14:42

Last Modified:

25 Feb 2023 00:15

Publisher DOI:

10.1016/j.jdent.2023.104426

PubMed ID:

36652971

Uncontrolled Keywords:

Dental implant single tooth, digital imaging/radiology, image-guided surgery, static Computer Assisted Implant Surgery, surgical guide

BORIS DOI:

10.48350/177691

URI:

https://boris.unibe.ch/id/eprint/177691

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