Nonsurgical treatment of moderate and advanced periimplantitis lesions: a controlled clinical study.

Abstract

The aim of this controlled, parallel design clinical study was to evaluate the effectiveness of an Er:YAG (erbium-doped:yttrium, aluminum, and garnet) laser for nonsurgical treatment of periimplantitis lesions. Twenty patients, each of whom displayed at least one implant with (a) moderate and (b) advanced periimplantitis (n=40 implants; IMZ, ITI, Spline Twist, ZL-Duraplant, Camlog), were randomly instrumented nonsurgically using either (1) an Er:YAG laser (100 mJ/pulse, 10 Hz) device (LAS) or (2) mechanical debridement using plastic curettes and antiseptic therapy with chlorhexidine digluconate (0.2%) (C). The following clinical parameters were measured at baseline, 3, 6, and 12 months after treatment: plaque index, bleeding on probing (BOP), probing depth, gingival recession, and clinical attachment level (CAL). Mean BOP improved significantly in both groups at 3, 6, and 12 months (a- lesions: P<0.001 and b- lesions: P<0.01, respectively). After 3 and 6 months, the mean reduction of BOP was significantly higher in the LAS group when compared to the C group (a- and b- lesions: P<0.01 and P<0.05, respectively). At 3 and 6 months, both groups revealed significant CAL gains at a- and b- lesions (P<0.01, respectively). In both groups, however, the mean CAL at a- and b- lesions was not significantly different from the respective baseline values at 12 months (P>0.05, respectively). Although treatment of periimplantitis lesions with LAS resulted in a significantly higher BOP reduction than C, its effectiveness seemed to be limited to a period of 6 months, particularly at b- lesions.

• Authors: Frank Schwarz, Katrin Bieling, Martin Bonsmann, Thilo Latz, Jürgen Becker
• Journal: Clinical oral investigations (Clin Oral Investig) Vol. 10 Issue 4 Pg. 279-88 (Dec 2006) ISSN: 1432-6981 [Print] Germany
• PMID: 16969659 (Publication Type: Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)

Chemical References

• Dental Implants

Topics

• Debridement (methods)
• Dental Implantation, Endosseous (adverse effects)
• Dental Implants (adverse effects)
• Female
• Humans
• Laser Therapy
• Male
• Middle Aged
• Pericoronitis (drug therapy, radiotherapy)
• Periodontal Index
• Statistics, Nonparametric