Study of the effect of the occlusal surface of a natural tooth and fixed partial dentures supported by dental implants on the stress distribution by finite element analysis

Gvetadze R.S.; Strekalov A.A.; Smerdov A.A.

doi:https://doi.org/10.17116/stomat202110003113

Gvetadze R.S.

Central Research Institute of Dentistry and Maxillofacial Surgery of the Ministry of Health of the Russian Federation

ORCID: 0000-0003-0508-7072

Strekalov A.A.

Central Research Institute of Dentistry and Maxillofacial Surgery - Ministry of Health of Russia

ORCID: 0000-0002-3452-1037

Smerdov A.A.

Fidesis LLC

ORCID: 0000-0001-7978-0465

Study of the effect of the occlusal surface of a natural tooth and fixed partial dentures supported by dental implants on the stress distribution by finite element analysis

Authors:

Gvetadze R.S., Strekalov A.A., Smerdov A.A.

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Journal: Stomatology. 2021;100(3): 13‑18

DOI: 10.17116/stomat202110003113

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To cite this article:

Gvetadze RS, Strekalov AA, Smerdov AA. Study of the effect of the occlusal surface of a natural tooth and fixed partial dentures supported by dental implants on the stress distribution by finite element analysis. Stomatology. 2021;100(3):13‑18. (In Russ.)
https://doi.org/10.17116/stomat202110003113

Подписка 2026 Стоматология (Stomatology)

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OBJECTIVE

To study the effect of the occlusal surface of a natural tooth, cement-retained and screw-retained fixed partial dentures supported by dental implants and the coefficient of friction on the stress distribution in the peri-implant bone at maximum and minimum principal stresses.

MATERIAL AND METHODS

Study of maximum and minimum principal stresses in models with natural teeth and artificial crowns supported by dental implants, taking into account the coefficient of friction using the finite element analysis

RESULTS

In models represented by fixed partial dentures supported by dental implants and a natural tooth, the maximum tensile stresses arise in the cortical bone in the cervical region of the artificial crown, and the maximum compressive stresses occur both in the cortical layer in the cervical region of the artificial crown and in the cervical region of the tooth. In models with two fixed partial dentures supported by dental implants or two natural teeth, the stress distributions in the cortical layers in the upper and lower jaw are almost identical.

CONCLUSION

Modeling the antagonist and adding to the FEA model is important in order to determine the precise and realistic direction of the resulting force vector. Amplification of the number of contact areas should be considered when modeling the occlusal surface of artificial crowns supported by dental implants.

Keywords:

finite element analysis

molar occlusal surface

stress distribution

Authors:

Gvetadze R.S.

Central Research Institute of Dentistry and Maxillofacial Surgery of the Ministry of Health of the Russian Federation

ORCID: 0000-0003-0508-7072

Strekalov A.A.

Central Research Institute of Dentistry and Maxillofacial Surgery - Ministry of Health of Russia

ORCID: 0000-0002-3452-1037

Smerdov A.A.

Fidesis LLC

ORCID: 0000-0001-7978-0465

Received:

21.12.2020

Accepted:

01.03.2021

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References:

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