Download Free Medical History And Present Status Of Implant Dentistry PowerPoint Presentation

History And Present Status Of Implant Dentistry PowerPoint Presentation

DOWNLOAD MEDICAL POWERPOINT PRESENTATION

About This Presentation

Description : Download Free History And Present Status Of Implant Dentistry Professional PowerPoint Presentation for your presentation

Tags : history and present status of implant dentistry

Published on : Jul 06, 2017 | Views : 2426 | Downloads : 96

Shareable Url :

Embed Code :

Comment

Transcript

Slide 1-

History and Present status of Implant Dentistry Trakol Mekayarajjananonth, D.D.S., M.S., F.A.C.P.
Slide 2-

Ancient Implants 16 th Dark stone ( Egyptian-South American) 17 th Carved ivory teeth
Slide 3-

Early Implants 1809 Gold implant e.20th Lead, iridium, tantalum, stainless steel, and cobalt alloy 1913 hollow basket iridium + gold wires (Greenfield)
Slide 4-

Early Implants 1937 Adams’s submergible threaded cylindrical implant with round bottom 1938 Strock’s (long term) threaded vitallium implant (cobalt+chrome+molybdenum) The modern implants appear to be variants or composites of some of the designs of early implants
Slide 5-

Subperiosteal Implants Placing implants on and around bone rather than in it 1943 Dahl of Sweden placed with 4 projecting posts Direct bone impression Cobalt-chrome-molybdenum casting CT-generated CAD-CAM model
Slide 6-

One-stage pins and screws Early 1960s pin, screw, and cylinder shaped implants One piece and not submerged Did not osseo-integration Fibrous peri-implant membrane Shock-absorbing claim
Slide 7-

Blade Implants 1967 Linkow blade implant-in narrow ridge Required shared support with natural teeth 1970 Roberts and Roberts - Ramus blade implant (titanium)
Slide 8-

Transosteal Implants 1975 Small introduced transosteal mandibular staple bone plate Limited to mandible only
Slide 9-

Transosteal Implants 1970 Cranin - single transosteal implant 1989 Bosker - transmandibular implant
Slide 10-

The First Dental Implant Consensus Conference, sponsored by the National Institutes of Health (NIH) and Harvard University in 1978, was a landmark event. “ Dental Implants: Benefits and Risks”
Slide 11-

The Toronto Conference opened the door to prompt widespread recognition of the Branemark implant. The discovery of osseointegration has been one of the most significant scientific break throughs in dentistry.
Slide 12-

Endosteal root-form implants 1978 Two-stage threaded titanium root-form implant was first presented in North America by Branemark (Toronto conference) Terms “fixture” First fixture was placed in 1965 Well-documented, long term prospective study
Slide 13-

Present Status Three Basic: “ In Bone” “Through Bone” “On Bone”
Slide 14-

“In Bone” 1. Ramus concepts (Harold and Ralph Roberts) 2. Pin concepts (J. Scialom Michelle Chercheve) 3. Disk concepts (Gerard Scorteci) 4. Plateform concepts (Harold + Roberts/Linkow) 5. Cylindrical or root form concepts
Slide 15-

Present Status Many other root-forms have been introduced. Body shaped competition Surface competition – roughness Varieties competition Connection competition
Slide 16-

Material for Implant Trakol Mekayarajjananonth DDS, MS, FACP
Slide 17-

Dental Implants Implant material should have suitable mechanical strength, biocompatibility, and structural biostability in physiologic environments.
Slide 18-

Dental Implants The development of biomaterials sciences has resulted in classification schemes for implantable materials according to chemical composition and biologic response.
Slide 19-

Biologic classification Based on tissue response and systemic toxicity effects of the implant Biotolerant Bioinert Bioactive
Slide 20-

Long term effects Biotolerant materials, such as polymethylmethacrylate (PMMA), are usually characterized by thin fibrous tissue interface. Chemical product irritate surrounding tissues.
Slide 21-

Long term effects Bioinert materials, such as titanium and aluminum oxide, are characterized by direct bone contact, or osseointegration, at the interface under favorable mechanical conditions. Non-reactive
Slide 22-

Long term effects Bioactive materials, such as glass and calcium phosphate ceramics, have a bone-implant interface characterized by direct chemical bonding of the implant with surrounding bone. Free calcium and phosphate compounds at the surface.
Slide 23-

Tissue response to implant materials Most commonly used biomaterials: Commercially pure (CP) titanium Titanium-aluminum-vanadium alloy (Ti-6Al-4V) Cobalt-chromium-molydenum (Co-Cr-Mo) alloy is most used for subperiosteal implants.
Slide 24-

Tissue response to implant materials Calcium phosphate ceramics, Hydroxyapatite (HA), used for augmentation material or coating on surface.
Slide 25-

Thank You