Importance of Bone Quantity and Quality When considering Implants

Importance of Bone Quantity and Quality When considering Implants
Guneeta Kalia
Compton Implants
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Many studies have indicated that bone quality and quantity influence the osseointegration and therefore the success of an implant. Bone quantity is defined as the available bone at an edentulous and future implant site. It is usually limited by adjacent anatomical structures. When evaluating the volume of available bone many factors must be considered such as available bone height, available bone width, available bone length, available bone angulation, and crown-implant ratio1,3. However, bone quality and itÇƒÙs factors are equally if not more important in influencing implant failure rates. The density reflects the strength of the bone and is determined by macroscopic cortical and trabecular bone characteristics. In general, the posterior segment of both jaws has higher failure rates because of poorer characteristics of bone and closer anatomical structures than the anterior segment1,3. Both of these local conditions of bone are detrimental in determining implant survival and should be considered during treatment planning.
References:
1)Scortecci G, Misch C, Benner K. Implants and Restorative Dentistry. London:Martin Dunitz Ltd. 2001. pg59-87.
2)Renouard F, Rangert B.Risk Factors in Implant Dentistry. Chicago:Quintessence Publishing Co Inc. 1999. pg 143-145.
3)Misch C. Contempory Implant Dentistry. St. Louis: Mosby- Year Book Inc. 1993.pg123-156.
4)Rangert B et al. Forces and Moments on Branemark Implants:The International Journal of Oral & Maxillofacial Implants. 1989; 4(3): 241-247
5)Wohrle P. Single-tooth Replacement in the Aesthetic Zone with Immediate Provisionalization: Fourteen Consecutive Case Report: Pract Periodont Aesthet Dent.1998;10(9): 1107-1114
6)Espositpo M et al. Biological factors contributing to failure of osseointegrated oral implants: Eur J Oral Sci. 1998;106: 721-764
7)Hebel K, Gajjar R. Achieving Superior Aesthetic Results: Parameters for implant and abutment selection: International Journal of Dental Symposia;4(1):42-47