The impact of occlusal forces on the longevity of restorations
Keywords:Longevity, Dental restorations, Occlusal forces, Biting, Masticatory habits
The longevity of dental restorations like fillings, crowns, and bridges is critically influenced by occlusal forces exerted during biting and chewing. These forces vary among individuals based on diet, masticatory habits, and the structural soundness of the dental arch and can range from 11 to over 450 Newtons, depending on circumstances. The choice of restorative material is important for withstanding these forces. While amalgam is durable, modern dentistry has shifted towards aesthetic restoratives such as composite resins and ceramics. However, these materials respond differently to occlusal forces. Ceramics might fracture under excess load, whereas composite resins resist wear but can degrade over time due to other factors. Precision in restoration is crucial to preventing undue occlusal forces that might lead to restoration failure. Tools like T-scan assist in this precision. The manner and distribution of occlusal forces, along with the health of the periodontal ligament, are critical for restoration durability. Bruxism, a parafunctional habit, can significantly impact restorations, necessitating protective measures like occlusal splints and patient education. The interplay of occlusal forces and the chosen restorative material greatly affects the success and lifespan of dental restorations.
Manfredini D, Lobbezoo F. Relationship between bruxism and temporomandibular disorders: a systematic review of literature from 1998 to 2008. Oral Surg Oral Med Oral Pathol Oral Radiol Endodontol. 2010;109(6):e26-50.
Kelly JR. Ceramics in restorative and prosthetic dentistry. Ann Rev Materials Sci. 1997;27(1):443-68.
Pintado MR, Anderson GC, DeLong R, Douglas WH. Variation in tooth wear in young adults over a two-year period. J Prosthetic Dentistry. 1997;77(3):313-20.
Gross MD, Ormianer Z. A preliminary study on the effect of occlusal vertical dimension increase on mandibular postural rest position. Int J Prosthodontics. 1994;7(3).
Kolker JL, Damiano PC, Caplan DJ, Armstrong SR, Dawson DV, Jones MP et al. Teeth with large amalgam restorations and crowns: factors affecting the receipt of subsequent treatment after 10 years. J Am Dental Asso. 2005;136(6):738-48.
Gil F, Espias A, Sánchez L, Planell J. Comparison of the abrasive wear resistance between amalgams, hybrid composite material and different dental cements. Int Dent J. 1999;49(6):337-42.
Lutz F, Phillips R, Roulet J, Setcos J. In vivo and in vitro wear of potential posterior composites. J Dental Res. 1984;63(6):914-20.
Bjertness E, Sønju T. Survival analysis of amalgam restorations in long-term recall patients. Acta odontologica Scandinavica. 1990;48(2):93-7.
Rawls H, Esquivel-Upshaw J. Resinas restauradoras. Phillips materiais dentários, 3rd dn Elsevier, Rio de Janeiro. 2005:375-418.
Roberson T, Heymann H, Ritter A, Pereira P. Classes I, II, and VI direct composite and other tooth-colored restorations. Art and science of operative dentistry Philadelphia, Mosby. 2006:576-7.
Gibbs CH, Mahan PE, Lundeen HC, Brehnan K, Walsh EK, Sinkewiz SL et al. Occlusal forces during chewing-influences of biting strength and food consistency. J Prosthet Dent. 1981;46(5):561-7.
Bernardo M, Luis H, Martin MD, Leroux BG, Rue T, Leitão J et al. Survival and reasons for failure of amalgam versus composite posterior restorations placed in a randomized clinical trial. The Journal of the American Dental Association. 2007;138(6):775-783.
Ferracane JL. Current Trends in Dental Composites. Critical Reviews in Oral Biology & Medicine. 1995;6(4):302-18.
Pjetursson BE, Brägger U, Lang NP, Zwahlen M. Comparison of survival and complication rates of tooth-supported fixed dental prostheses (FDPs) and implant-supported FDPs and single crowns (SCs). Clin Oral Implants Res. 2007;18(s3):97-113.
Heintze S, Cavalleri A, Forjanic M, Zellweger G, Rousson V. Wear of ceramic and antagonist—A systematic evaluation of influencing factors in vitro. Dental Materials. 2008;24(4):433-49.
Kidd EA, Toffenetti F, Mjör IA. Secondary caries. Int Dent J. 1992;42(3):127-38.
Smales RJ, Berekally TL. Long-term survival of direct and indirect restorations placed for the treatment of advanced tooth wear. Eur J Prosthodontics Restorative Dentistry. 2007;15(1):2-6.
Marshall S, Marshall G, Anusavice K. Amálgamas Dentárias. Anusavice KJ Phillips, Materiais Dentários 11ª ed Rio de Janeiro: Elsevier. 2005:469-514.
Manhart J, Chen H, Hamm G, Hickel R. Review of the clinical survival of direct and indirect restorations in posterior teeth of the permanent dentition. Operative dentistry-university of Washington. 2004;29:481-508.
Wilder A, Roberson T, Pereira P, Ritter A, May K. Classes I, II and VI amalgam restorations. Roberson T, Heymann H, Swift E Sturdevant’s Art and Science of Operative Dentistry 4ª ed Missouri: Mosby. 2002:671-739.
Soares AC, Cavalheiro A. A Review of Amalgam and Composite Longevity of Posterior Restorations. Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial. 2010;51(3):155-164.
Ferracane JL. Resin composite-state of the art. Dental materials. 2011;27(1):29-38.
Opdam NJ, Bronkhorst EM, Roeters JM, Loomans BA. A retrospective clinical study on longevity of posterior composite and amalgam restorations. Dental materials. 2007;23(1):2-8.
Collins C, Bryant R, Hodge K-L. A clinical evaluation of posterior composite resin restorations: 8-year findings. Journal of dentistry. 1998;26(4):311-7.
Hickel R, Manhart J. Longevity of restorations in posterior teeth and reasons for failure. J Adhesive Dentistry. 2001;3(1).
Sidhu SK, Nicholson JW. A Review of Glass-Ionomer Cements for Clinical Dentistry. J Fnctional Bbiomaterials. 2016;7(3).
Jagger D, Harrison A, Jandt K. The reinforcement of dentures. J Oral Rehabilitation. 1999;26(3):185-194.
Goodacre CJ, Kan JY, Rungcharassaeng K. Clinical complications of osseointegrated implants. J Prosthetic Dentistry. 1999;81(5):537-52.
Van Dijken J. Direct resin composite inlays/onlays: an 11 year follow-up. J Dentistry. 2000;28(5):299-306.