Periodontal Decontamination Induced by Light and Not by Heat: Comparison between Oxygen High Level Laser Therapy (OHLLT) and LANAP

Abstract

In periodontology, lasers have been suggested for the nonsurgical treatment of chronic periodontitis. Many wavelengths were tested, but unfortunately, most parts were not efficient. An Nd:YAG laser was applied in a specific protocol named the laser-assisted new attachment procedure (LANAP). LANAP seems to facilitate the refurbishment of new tissues from supporting structures of the periodontium, wherein the unhealthy surface of the roots exhibits pristine attachments in human beings. Photodynamic therapy (PDT) was investigated too. The aim of our study is to show the effects of oxygen high-level laser therapy (OHLLT) in removing all bacterial deposits on the root or implant surface by means of mechanical instrumentation and laser irradiation compared to LANAP and to nonsurgical debridement of periodontal pockets. At 7 days post-treatment, a real-time PCR test had similar results on the OHLLT and LANAP groups. After 9 months, all periodontal pockets were treated successfully, not showing significant differences in the clinical results between OHLLT and LANAP and with a decrease in the plaque index, bleeding on probing and probing depth compared with the nonsurgical debridement group.

Photodynamic Therapy Using 5-Aminolevulinic Acid (Ala) for the Treatment of Chronic Periodontitis: A Prospective Case Series

“…The literature reported that subgingival debridement (scaling and root planning) leads to a temporary change in the composition of subgingival microorganisms, including species like the microflora found in healthy periodontal sites [56,57]. However, recolonization of the periodontal sites by spirochetes and motile rods one to two months after the end of the therapy, together with the persistence of red and orange complexes bacteria in the deepest part of the periodontal pockets, make it clear that non-surgical periodontal treatment (SRP) is not sufficient in contrasting chronic periodontitis [58][59][60].…”

Pain Reduction during Rapid Palatal Expansion Due to LED Photobiomodulation Irradiation: A Randomized Clinical Trial

“…First of all, we observed that in the literature there were studies that analyzed the effectiveness of laser photobiomodulation in orthodontics during the positioning of elastic separators [25,26] or orthodontic archwires and evaluate their analgesic efficacy according to the protocols [27,28]. There were several works on the efficacy of lasers and LEDs, not only in orthodontics but even in other fields of dentistry, especially in the management of periodontitis and perimplantitis [29][30][31][32][33][34][35]. However, no study has ever involved the analgesic efficacy of the laser in palatal expansion [36].…”

Diode Lasers in Dentistry: Current and Emerging Applications

“…Diode lasers are increasingly being used as part of the laser assisted new attachment procedures (LANAP), whereby the epithelium lining the pocket is removed in an attempt to gain new attachment. 47 To perform this procedure, after the completion of scaling and root planing the optical fiber is introduced into the periodontal pocket and ascending and descending movement are performed. Through the duration of the procedure the optical fiber must be maintained parallel to the tooth root main axis, with the laser being rotated around the perimeter of each involved tooth.…”