The Open Dentistry Journal

ISSN: 1874-2106 ― Volume 14, 2020

The Adjunctive Use of the Erbium, Chromium: Yttrium Scandium Gallium Garnet Laser in Closed Flap Periodontal Therapy. A Retrospective Cohort Study

Rana Al-Falaki*, , Mark Cronshaw, Steven Parker
Al-FaPerio Clinic, 48A Queens Road Buckhurst Hill Essex IG9 5BY, UK
Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Italy



The current periodontal literature has been inconsistent in finding an added advantage to using lasers in periodontal therapy. The aim of this study was to compare treatment outcomes following root surface instrumentation alone (NL group), or with adjunctive use of Erbium, Chromium: Yttrium Scandium Gallium Garnet (Er,Cr:YSGG) laser (L group).

Material and Methods:

Patients diagnosed with generalized chronic periodontitis, having a minimum of 1 year follow up were selected by a blinded party for inclusion in a retrospective analysis from patients treated prior to and after integration of laser in a single clinic setting. Probing depths (PD) of all sites ≥5 mm and full mouth bleeding scores were analyzed. Further analysis was carried out on the treatment outcomes of only the molar teeth and of pockets >6mm.


53 patients were included (25 NL,28 L). There was no significant difference between baseline PDs (NL=6.19mm, L=6.27mm, range 5-11mm). The mean PD after one year was 2.83mm (NL) 2.45mm (L), with the mean PD reductions being 3.35mm (NL) and 3.82mm (L) (p<0.002). The mean PD reduction for the molars were 3.32mm (NL) and 3.86mm (L) (p< 0.007), and for ≥7mm group were 4.75mm (NL) compared to 5.14mm (L) (p< 0.009). There was significantly less bleeding on probing in the laser group after one year (p<0.001)


Both treatment modalities were effective in treating chronic periodontitis, but the added use of laser may have advantages, particularly in molar tooth sites and deeper pockets. Further research with RCTs is needed to test this hypothesis further.

Keywords: Erbium Lasers, Furcation lesions, Laser -Periodontitis, Molar teeth, Non-surgical periodontal therapy, Periodontal Pockets.

Article Information

Identifiers and Pagination:

Year: 2016
Volume: 10
First Page: 298
Last Page: 307
Publisher Id: TODENTJ-10-298
DOI: 10.2174/1874210601610010298

Article History:

Received Date: 20/12/2015
Revision Received Date: 03/05/2016
Acceptance Date: 09/05/2016
Electronic publication date: 13/06/2016
Collection year: 2016

© Al-Falaki et al. ; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution-Non-Commercial 4.0 International Public License (CC BY-NC 4.0) (, which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

* Address correspondence to this author at the Al-FaPerio Clinic, 48A Queens Road Buckhurst Hill Essex IG9 5BY, UK; Tel: +44 208 5060701; E-mail:

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