Distal cantilever length comparison in esthetic material for hybrid implant prosthesis: an in vitro study.
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Vol 14 No 1 (2023), Original Article
Vol 14 No 1 (2023)

Distal cantilever length comparison in esthetic material for hybrid implant prosthesis: an in vitro study.

Original Article
Published 15 May 2023
Sana SHAMS EDDIN
Master of restorative and esthetic dentistry, Faculty of Dental Medicine, Saint Joseph University of Beirut, Doctorate student at Federal University of Santa Catarina, Florianopolis, Brazil.
Elie JASSER
Master of restorative and esthetic dentistry, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon.
Mohammad CHAMS EDDIN
Clinical Professor, department of maxillofacial surgery, Faculty of Damascus, Damascus, Syria.
Joseph MAKHZOUME
Former dean of Faculty of dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon.
Carole YARED
. Clinical Professor, Post graduate director, Department of Removable Prosthodontics, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon.
Paul J BOULOS
Professor, Department of Removable Prosthodontics, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut, Lebanon.
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Keywords

Biomedical dental materials
zirconia, PEEK
cantilever
fracture load

How to Cite

SHAMS EDDIN , S., JASSER , E., CHAMS EDDIN , M., MAKHZOUME , J., YARED, C., & BOULOS, P. J. (2023). Distal cantilever length comparison in esthetic material for hybrid implant prosthesis: an in vitro study. International Arab Journal of Dentistry (IAJD), 14(1), 47-56. Retrieved from https://journals.usj.edu.lb/iajd/article/view/861
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Abstract

Objective: the assessment of distal cantilever length in implant supported prothesis (Hybrid prosthesis) by comparing the load to fracture in two different esthetic framework materials (Zirconia and Polyetheretherketone (PEEK)) with two different cantilevers loading distances (10mm, 15mm).

Material and methods: 20 frameworks were fabricated and divided into 4 groups (n=5): according to the material type, Peek, zirconia, and according to the cantilever loading distance (10), or (15) mm and a load-to-fracture test was used until complete fracture of specimens occurs.

Results: The effect of material type and cantilever loading distance were statistically significant for the mean load-to-fracture values (P< 0.05). The Zirconia group failed at higher fracture loads (817 N) than the Peek one (651 N). Frameworks with 10 mm cantilever loading distance failed at higher fracture loads than specimens with 15 mm.

Conclusion: Peek is a suitable material for hybrid implant prosthesis (with distal cantilever in specific situations, and for zirconia the success chances are higher in these types of prosthesis when the distal cantilever length is kept at its minimal value (10 mm).

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