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Quintessence Publishing: Journals: QI
Quintessence International

Edited by Eli Eliav

ISSN 0033-6572 (print) • ISSN 1936-7163 (online)

October 2019
Volume 50 , Issue 9

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Comparison of biofilm removal using glycine air polishing versus sodium bicarbonate air polishing or hand instrumentation on full-arch fixed implant rehabilitations: a split-mouth study

Maria Menini, DDS, PhD/Paolo Setti, DDS/Elena Dellepiane, DDS, PhD/Paola Zunino/Paolo Pera, MD, DDS, PhD/Paolo Pesce, DDS, PhD

Pages: 722730
DOI: 10.3290/j.qi.a42704

Objectives: To compare the cleaning efficacy of glycine air polishing against two different professional oral hygiene techniques on implants supporting full-arch fixed prostheses.

Method and materials: Thirty patients with a total of 32 implant fixed full-arch rehabilitations in the maxilla and/or mandible (134 implants) were included. After the removal of the screw-retained prostheses, baseline peri-implant spontaneous bleeding (SB), Plaque Index (PI), probing depth (PD), and bleeding on probing (BOP) were recorded (T0). Three oral hygiene treatments were assigned randomly following a split-mouth method: all the patients received glycine air polishing (G) in one side of the arch (n = 32), and sodium bicarbonate air polishing (B) (n = 16) or manual scaling with carbon-fiber curette (C) (n = 16) was performed in the opposite side. After the hygiene procedures, PI and SB were recorded and patient’s comfort degree towards the three techniques was analyzed by questionnaires using a rating scale from 1 to 5 (T1).

Results: PI reduction was significantly higher for G (T0, 2.88 1.37; T1, 0.04 0.21) and B (T0, 3.13 1.34; T1, 0.0 0.0) as compared with C (T0, 2.15 1.46; T1, 0.44 0.7) (P < .001). B reported the highest mean value of SB (T0, 0.0 0.0; T1, 3.42 0.75) compared with G (T0, 0.05 0.21; T1, 1.60 1.05) and C (T0, 0.07 0.24; T1, 0.73 0.91) (P < .001). A significant difference in comfort mean score was found between G (4.8 0.5) and B (3.5 1.7) (P = .014), no difference between G and C (4.7 0.7) (P = .38).

Conclusion: Professional oral hygiene on implants using glycine air polishing showed high levels of both cleaning efficacy and patients’ acceptance.

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