Can the KTP laser change the cementum surface of healthy and diseased teeth providing an acceptable root surface for fibroblast attachment?

Jason Michael Mailhot; Jerry J. Garnick D.D.S.

doi:10.1117/12.238752

23 April 1996 Can the KTP laser change the cementum surface of healthy and diseased teeth providing an acceptable root surface for fibroblast attachment?

Jason Michael Mailhot, Jerry J. Garnick D.D.S.

Author Affiliations +

Proceedings Volume 2672, Lasers in Dentistry II; (1996) https://doi.org/10.1117/12.238752
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

The purpose of our research is to determine the effects of KTP laser on root cementum and fibroblast attachment. Initial work has been completed in testing the effect of different energy levels on root surfaces. From these studies optimal energy levels were determined. In subsequent studies the working distance and exposure time required to obtain significant fibroblast attachment to healthy cementum surfaces were investigated. Results showed that lased cemental surfaces exhibited changes in surface topography which ranged from a melted surface to an apparent slight fusion of the surface of the covering smear layer. When the optimal energy level was used, fibroblasts demonstrate attachment on the specimens, resulting in the presence of a monolayer of cells on the control surfaces as well as on the surfaces lased with this energy level. The present study investigates the treatment of pathological root surfaces and calculus with a KTP laser utilizing these optimal parameters determine previously. Thirty single rooted teeth with advanced periodontal disease and ten healthy teeth were obtained, crowns were sectioned and roots split longitudinally. Forty test specimens were assigned into 1 of 4 groups; pathologic root--not lased, pathologic root--lased, root planed root and health root planed root. Human gingival fibroblasts were seeded on specimens and cultured for 24 hours. Specimens were processed for SEM. The findings suggest that with the KTP laser using a predetermined energy level applied to pathological root surfaces, the lased surfaces provided an unacceptable surface for fibroblast attachment. However, the procedural control using healthy root planed surfaces did demonstrate fibroblast attachment.

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Jason Michael Mailhot and Jerry J. Garnick D.D.S. "Can the KTP laser change the cementum surface of healthy and diseased teeth providing an acceptable root surface for fibroblast attachment?", Proc. SPIE 2672, Lasers in Dentistry II, (23 April 1996); https://doi.org/10.1117/12.238752

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KEYWORDS

Natural surfaces

Cements

Teeth

Ferroelectric materials

Calculus

Fusion energy

Nd:YAG lasers

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