J Biol Regul Homeost Agents. 2019 Jan 22;33(1):293-297.

Use of photobiomodulation induced by polarized polychromatic non-coherent light in the management of adult chronic periodontitis.

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Nardi GM1, Grassi R2, Grassi FR3, Aragona SE4, Rapone B3, Della Vella F3, Sabatini S1.

Author information

1 Department of Odontostomatological and Maxillofacial Sciences, University of Rome “Sapienza”, Rome, Italy.
2 Department of Clinical and Experimental Medicine, Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy.
3 Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari “Aldo Moro”, Bari, Italy.
4 Humanitas Mater Domini Hospital, Castellanza (VA), Italy.


The aim of the study was to evaluate the efficacy of a polarized, polychromatic, non-coherent light (Bioptron), in addition to full mouth scaling and root planing, in chronic periodontitis. Forty adult patients affected by chronic periodontitis were enrolled in the study and were randomly divided into two groups. The control group received only full mouth scaling and root planing (FMSRP), while in the test group, Bioptron light treatment was added to FMSRP. The Full Mouth Plaque Score (FMPS), Full Mouth Bleeding Score (FMBS), Gingival Index (GI) and Probing Pockets Depth (PPD) were recorded in both groups at the first examination, after 1 month (T1) and after 3 months (T2). Both groups showed a significant reduction of FMPS at T1 and T2 (p less than 0.05). Both groups showed a significant reduction of FMBS at T1 and T2 (p less than 0.05), but a higher improvement (p less than 0.05) was recorded in the study group at T1. Study group GI was significantly reduced at T2 (p less than 0.05), differently from the control group (p>0.05). PPD showed a reduction in both groups with no statistically significant differences (p>0.05) between them. Polarized, polychromatic non-coherent light seems to be an effective additional therapy in the management of adult chronic periodontitis, reducing inflammatory clinical indexes.

Key words: light therapy, chronic periodontitis, periodontal therapy

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