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CO2 laser treatment of traumatic pulpal exposures in dogs
P Wilder-Smith1, G M Peavy, D Nielsen
1Beckman Laser Institute and Medical Center, University of California, Irvine 92612, USA. pwsmith@bli.uci.edu
Background And Objective:
Successful non-devitalizing treatment of localized pulpal lesions in mature teeth is not ensured using conventional endodontic techniques. The objective of this study was to evaluate CO2 laser surgical treatment of pulpal exposures in canine patients.
Study Design/Materials And Methods:
17 permanent teeth with pulpal exposures of < or = 48 h duration received localized laser pulp surgery. Laser Parameters: pulse duration: 0.01 s, pulse interval: 1.0 s, spot size: 0.004 cm2, fluence: 276 J/cm2. Exposures were dressed with CaOH and Glass ionomer. Clinical and radiographic evaluations were performed by one blinded clinician 24 and 52 weeks after treatment.
Results:
15/17 laser-treated teeth assessed over > or = 1 year post-treatment remained clinically and radiographically healthy.
Conclusion:
These results demonstrate the feasibility of using the CO2 laser for localized pulp surgery. Further studies must optimize laser parameters and identify the range of clinical pathologies which can be treated using this modality.
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