Treatment of peri-implantitis using an Er:YAG laser or an air-abrasive device

Stefan Renvert, Christel Lindahl, Ann-Marie Roos Jansåker, G. Rutger Persson

    Research output: Contribution to journalArticlepeer-review

    140 Citations (Scopus)



    Non-surgical peri-implantitis therapies appear to be ineffective. Limited data suggest that ER:YAG laser therapy improves clinical conditions. The present study aimed at comparing the treatment effects between air-abrasive (AM) and Er:YAG laser (LM) mono-therapy in cases with severe peri-implantitis.

    Materials and methods

    Twenty-one subjects in each group were randomly assigned to one time intervention by an air-abrasive device or an Er:YAG laser. Clinical data were collected before treatment and at 6 months. Data analysis was performed using repeat univariate analysis of variance controlling for subject factors.


    No baseline subject characteristic differences were found. Bleeding on probing and suppuration decreased in both the groups (p < 0.001). The mean probing depth (PPD) reductions in the AM and LM groups were 0.9 mm (SD 0.8) and 0.8 mm (SD +/- 0.5), with mean bone-level changes (loss) of -0.1 mm (SD +/- 0.8) and -0.3 mm (SD +/- 0.9), respectively (NS). A positive treatment outcome, PPD reduction >= 0.5 mm and gain or no loss of bone were found in 47% and 44% in the AM and LM groups, respectively.


    The clinical treatment results were limited and similar between the two methods compared with those in cases with severe peri-implantitis.

    Original languageEnglish
    Pages (from-to)65-73
    Number of pages8
    JournalJournal of Clinical Periodontology
    Issue number1
    Publication statusPublished - 2011

    Swedish Standard Keywords

    • Dentistry (30216)


    • 14-year
    • air-abrasive
    • bone loss
    • er-yag laser
    • follow-up
    • implants
    • intervention
    • keratinized mucosa
    • laser
    • mechanical nonsurgical treatment
    • non-surgical
    • peri-implantitis
    • subgingival plaque removal
    • titanium


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