Root Resorption of Dental Origin

Dr Martin Trope BDS DMD

Under normal circumstances permanent teeth do not resorb. This fact appears to be due to anti-resorptive properties of the pre-cementum on the external surface of the root and the pre-dentin on the internal surface of the root. If these tissues are intact, periodontitis will result in bone resorption but root resorption will generally not occur. If however, these tissues are removed or altered, the inflammatory response will include multinucleated clastic cells and root resorption will ensue. Therefore active root resorption due to dental injuries is always inflammatory in origin, is destructive in nature and is radiolucent on the radiograph.If the stimulus for the inflammation is not removed the destructive inflammatory resorption will continue until the entire root surface is destroyed. The healing response is dependent on the amount of damage to the root surface if the initial inflammation goes into the healing phase. If the inflammatory stimulus is self limiting or is reversed by the dentist healing will result. If after the destructive inflammation subsides the damage to the root surface is over a small surface area healing with new cementum and periodontal ligament will result. This is considered favorable healing. If on the other hand the damage is over a diffuse or large surface area, cementum will not be able to cover the entire root surface and bone producing cells will attach directly onto the root surface and eventually osseous replacement of the root will occur. This is unfavorable healing. This talk will describe the typical causes of root resorption. Diagnosis of different inflammatory stimulators will be discussed and the most effective treatment strategies to minimize inflammation and thus predispose to favorable healing will be presented.

Understand the biology and pathogenesis of root resorption
– Understand how to choose an effective treatment plan to minimize or treat root resorption
– Understand the reasoning behind the treatment protocols

Speaker:

Dr Martin Trope BDS DMD

Endodontist @Next Level Endodontics

Martin Trope was born in Johannesburg, South Africa where he earned his BDS degree in dentistry in 1976. From 1976 to 1980, he practiced general dentistry and endodontics. In 1980, he moved to Philadelphia to specialize in Endodontics at the University of Pennsylvania. After graduating as an endodontist, he continued at the University of Pennsylvania as a faculty member until 1989 when he became Chair of Endodontology at Temple University, School of Dentistry. In 1993, he accepted the JB Freedland Professorship in the Department of Endodontics at the University of North Carolina at Chapel Hill, School of Dentistry. Named in honor of one of the founding fathers of Endodontics, the Freedland Professorship recognizes significant contributions to the specialty. Dr. Trope is currently clinical professor, Department of Endodontics, School of Dental Medicine at the University of Pennsylvania. He is in private practice in Philadelphia, PA.

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