biomechanics and implant occlusion 16-9

8/19/2019 Biomechanics and Implant Occlusion 16-9

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Taylor et al. Evidence based considerations for removable prosthodontic and dental



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dentistry and related research 2007; 9: 121 - 127

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dentistry and related research 2007; 9: 121 127




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Taylor T et al. Implant Prosthodontics; Current Perspective and FutureDirections Int J Oral Maxillofac Implants 2000; 15: 66 – 75



“There is no scientific evidence that the osseointegrated interface living host and non living implant responds differently to compressthan it does to tensile or shear forces of similar magnitude”




“The limited evidence available does not demonstrate that non-axial loading is detrimen

osseointegrated interface between bone and implant surface”

Taylor et al. Evidence based considerations for removable prosthodontic and dental iliterature review. J Prosthet Dent 2005;94; 555-560

Cruz Mauro et al. Finite Element Stress Analysis of Dental prostheses Supported by St

Implants, IJOMI 2009,24:391-403



“No cantilevers” – Misch CE ed. Contemporary Implant DentElsevier Pub. 2008.Pages: 314, 315,319,375,376,377,386,415,416,417,771,772

Misch text Misch tex

“Prognosis of implant supported FPDs and marginal bone loss



Romeo E, et al. Implant-supported fixed cantilever prosthesis in partially edea cohort prospective study,Clin Oral Implants Res 2009, 20; 1278-1285

Pr ognosis of implant-suppor ted FPDs and mar ginal bone losswere not influenced by the position or the length of the cantilevof the bridge or opposing dentition”

1999 2002 2005

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1.Jemt T et al. Prosthesis misfit and marginal bone loss in edentulous implant patients Int JOral Maxillofac Implants 1996;11:620-6252. Isa ZM, Hobkirk JA. The effects of superstructure fit and loading on individual implant unitsPart I. Eur J Proshthodont Rest Dent 1995;3:247-2533.Taylor T et al. Implant Prosthodontics; Current Perspective and Future Directions Int J Oral

Maxillofac Implants 2000; 15: 66 - 754.Carr AB, et al. The response of bone in primates around unloaded dental implants

supporting prostheses with different levels of fit. J Prosthet Dent 1996; 76: 500-509

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• Types of Occlusion: – Pathologic:

– there is insufficient harmony with the anatomic and physiologic controls of the mandimovement)producing breakdown processes within the tissues of the stomatognathic s



movement)producing breakdown processes within the tissues of the stomatognathic sexistence of disease

• Types of Occlusion: – Pathologic:

– there is insufficient harmony with the anatomic and physiologic controls of the mandimovement)producing breakdown processes within the tissues of the stomatognathic s



movement)producing breakdown processes within the tissues of the stomatognathic sexistence of disease

• Types of Occlusion:

– Malocclusion: is one in which the contacts of adjacent and opposing occlusteeth are not in harmony – does not state health or disease

–Adaptive vs. pathology



p p gy

• Types of Occlusion:

– Malocclusion: is one in which the contacts of adjacent and opposing occlusteeth are not in harmony – does not state health or disease

–Adaptive vs. pathology



p p gy

• Types of Occlusion: – Normal Occlusion: is one which is typical or usual in accordance with the

given population

–Normal does not mean health or disease



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Oral Biol 1991;36:997-1006

2. Raadsheer MC et al. Contribution of jaw a muscle size and craniofacial morphology

bite force magnitude. J Dent Res 1999;78:31-42

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•Direct the loads along the axial inclination of the implprovide the best stress distribution

•Decrease the bucco-lingual widths of the replacing tominimize cantilevers

Basic Principles



Basic Principles



•Decrease the cuspal angulations to minimize the torqueabutment screws and the implant body

•Consider cross-bite occlusion to compensate for maxilla

Basic Principles





Basic Principles



C

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