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Volume 37 , Issue 2
March/April 2017
Pages e149–e153

Er:YAG Laser for Surgical Crown Lengthening: A 6-Month Clinical Study

Chang-Kai Chen, DDS/Yung-Tsan Wu, MD/Nai-Jen Chang, MD/Wan-Hong Lan, PhD/Jyuhn-Hurng Ke, PhD/Earl Fu, DScD/Da-Yo Yuh, DDS

PMID: 28196171
DOI: 10.11607/prd.2551

This study evaluated use of a solid-state laser to avoid the flap technique and suturing. An Er:YAG laser was used in 26 consecutive patients referred for osseous crown lengthening in 32 posterior teeth. The distance from the planned restoration margin to the alveolar crest (B) satisfied a 3-mm dentogingival complex. No tissue necrosis and no significant change in the distance from the gingival margin to B or probing depth were detected at 3 and 6 months. Minimally invasive Er:YAG laser surgery decreases the time needed to establish the gingival margin necessary for definitive restoration.

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