Morphologic changes following in vitro CO2 laser treatment of calculus-ladened root surfaces

Root Surface Biomodification with an Er:YAG Laser for the Treatment of Gingival Recession with Subepithelial Connective Tissue Grafts

“…Because the emission wavelength is highly absorbed by water, the Er:YAG laser possesses an excellent capacity for ablating dental hard tissues without producing major thermal side effects, 38,44 such as carbonization, melting, and cracking of the root substance, which are usually observed following CO 2 and Nd:YAG laser irradiation. [36][37][38]59,60 Regarding the biocompatibility of the Er:YAG laser-irradiated root surface, several previous studies reported a faster adhesion and growth of fibroblasts on laser-treated surfaces compared with mechanically debrided surfaces. 41,51,61 Feist and colleagues 41 reported that the root surfaces prepared by Er:YAG laser irradiation at a high energy level delayed early human gingival fibroblast adherence.…”

Lasers and soft tissue: periodontal therapy

“…23,[40][41][42] The development of Er:YAG and Er,Cr:YSGG, together with innovative near-UV wavelengths such as frequency-doubled alexandrite (FDA, 377 nm), has given encouragement to the safe use of these lasers in calculus removal.…”

Laser Assisted Non-surgical Periodontal Therapy: A Double Blind, Randomized Clinical Trial

“…reported that the in vitro use of a CO 2 laser killed more than 99% of Porphyromonas gingivalis (PG) and Aggregatibacter actinomycetemcomitans (AA) at 7.5 and 12.5 J/cm 2 and significantly reduced LPS biological activity when irradiated by energy densities greater than 7.5 J/cm 2 [9]. However, there is insufficient evidence to conclude if a laser can decontaminate a periodontal pocket [10]. The purpose of this study was to compare the outcome of scaling and root planing with and without CO 2 laser for the treatment of chronic periodontitis, in a split mouth design; and to examine the effect of laser therapy on subgingival microbiota over a period of six months.…”