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Evaluation of the occlusal contact area of molar dental implants comparing two different thicknesses (16 µm and 200 µm) of articulating occlusal papers and forces (200 and 250 N): a pivot in vitro study
Motta, Sergio Henrique Gonçalves; Matos, José Augusto Valente de; Leite, Gustavo Boehmer; Vivacqua, Cristiane Ferreira Pinto Paterline; Santos, Leonardo Emiliano dos; Elias, Carlos Nelson; Fernandes, Gustavo Vicentis de Oliveira.
  • Motta, Sergio Henrique Gonçalves; Faculdade Sete Lagoas. Implant Dentistry Department. Rio de Janeiro. BR
  • Matos, José Augusto Valente de; s.af
  • Leite, Gustavo Boehmer; Military Institute of Technology. Rio de Janeiro. BR
  • Vivacqua, Cristiane Ferreira Pinto Paterline; s.af
  • Santos, Leonardo Emiliano dos; s.af
  • Elias, Carlos Nelson; Military Institute of Technology. Materials Engineering Department. Rio de Janeiro. BR
  • Fernandes, Gustavo Vicentis de Oliveira; University of Michigan. Department of Periodontics and Oral Medicine. Ann Arbor. US
Rev. Flum. Odontol. (Online) ; 1(60): 147-160, jan.-abr. 2023. ilus
Article in English | LILACS, BBO | ID: biblio-1411400
ABSTRACT

Introduction:

The goal of this pilot study was to evaluate the differences between checking occlusion on implants crowns using 16 or 200 µm thickness of articulating occlusal paper, and to compare the stained occlusal area between the groups after bite forces of 200 and 250 N.

Methods:

It was included 10 casts of articulated-type IV gypsum, 10 NiCr crowns, articulating occlusal papers (16 µm and 200 µm thick), and a compression test machine. Compressive forces (200 and 250 N.mm) were applied on models, to check the occlusal contact area of fixed and cemented crowns. The contact areas on the crowns were measured through images obtained by the scanning electron microscope. Statistical tests were performed considering the significant level of 5% (p≤0.05).

Results:

The stains found using 200 µm of articulating paper were higher than those with 16 µm, independent of the force applied. However, the stains obtained in lower teeth with different strengths (200 and 250N) marked with 16 µm articulating paper were not possible to score. The articulating paper variable had significant statistical results (p=0.002), while the variables force (p=0.443) and articulating paper-force interaction (p=0.607) were not significant. The mean area found in staining using the 200 µm and 16 µm papers was, respectively, 8.3380 mm2 and 3.4759 mm2.

Conclusion:

It was possible to confirm that 200 µm of articulating occlusal paper showed better and significant results to stain the occlusal area, permitting a more accurate adjustment independent of the force applied.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Bite Force / Dental Implants / Compressive Strength / Crowns / Dental Articulators / Dental Occlusion / Molar Type of study: Prognostic study Language: English Journal: Rev. Flum. Odontol. (Online) Journal subject: Medicina Cl¡nica / Odontologia / Patologia Year: 2023 Type: Article Affiliation country: Brazil / United States Institution/Affiliation country: Faculdade Sete Lagoas/BR / Military Institute of Technology/BR / University of Michigan/US

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Full text: Available Index: LILACS (Americas) Main subject: Bite Force / Dental Implants / Compressive Strength / Crowns / Dental Articulators / Dental Occlusion / Molar Type of study: Prognostic study Language: English Journal: Rev. Flum. Odontol. (Online) Journal subject: Medicina Cl¡nica / Odontologia / Patologia Year: 2023 Type: Article Affiliation country: Brazil / United States Institution/Affiliation country: Faculdade Sete Lagoas/BR / Military Institute of Technology/BR / University of Michigan/US