Effect of GaAlAs-Semiconductor Laser Irradiation on Dentin Hypersensitivity of Exposed Root Surface and Influence to Micro-flora in Dento-Gingival Region

Gingival recession is defined as the migration of the gingival margin apical to the cemento-enamel junction and can be caused by bacterial biofilms, primary etiological factor of periodontal inflammation, as well as the trauma of brushing. The treatment is usually a recontouring of the gingival architecture with or without associated techniques to achieve the covering of the exposed root surface and increase the amount of keratinized tissue. These procedures aim to an aesthetic improvement and treatment of dentin hypersensitivity as well as reducing the risk of caries. The coronally positioned flap is a technique widely used for achieving root coverage. The literature have reported several factors that can interfere with the success of this technique, among which are those related to periodontal tissue, the surgical technique and patient’s habits. The aim of this article was to getter the factors that could influence the outcome of coronally positioned flap technique, through a literature review.

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An Explorative Study to Develop a Predictive Model Based on Avascular Exposed Root Surface Area for Root Coverage After a Laterally Positioned Flap

Journal of Periodontology ◽

10.1902/jop.2014.140453 ◽

2015 ◽

Vol 86 (3) ◽

pp. 356-366 ◽

Cited By ~ 4

Author(s):

Onur Ozcelik ◽

Gulsah Seydaoglu ◽

M. Cenk Haytac

Keyword(s):

Predictive Model ◽

Surface Area ◽

Root Surface ◽

Root Surface Area ◽

Root Coverage ◽

Explorative Study ◽

Model Based ◽

Exposed Root

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DEMINERALIZING AGENTS VERSUS ER: YAG LASER IRRADIATION EFFECT ON ROOT SURFACE DEMINERALIZATION:A SCANNING ELECTRON MICROSCOPIC STUDY.

International Journal of Advanced Research ◽

10.21474/ijar01/737 ◽

2016 ◽

Vol 4 (6) ◽

pp. 1613-1621 ◽

Cited By ~ 1

Author(s):

Dr.Shobha Prakash ◽

◽

Dr.Disha Nagpal ◽

Dr.Trushna Ladhad ◽

◽

...

Keyword(s):

Laser Irradiation ◽

Microscopic Study ◽

Electron Microscopic Study ◽

Root Surface ◽

Irradiation Effect ◽

Electron Microscopic ◽

Yag Laser ◽

Scanning Electron Microscopic Study ◽

Scanning Electron Microscopic ◽

Scanning Electron

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Microleakage of "Bulk-Fill" Composite Resin for Class II Restorations Pretreated With CO2 Laser in Deciduous Molars: An In Vitro Study

Journal of lasers in medical sciences ◽

10.15171/jlms.2019.49 ◽

2019 ◽

Vol 10 (4) ◽

pp. 304-309

Author(s):

Larissa Costa Santos ◽

Ravana Angelini Sfalcin ◽

Eugenio José Garcia ◽

Fátima Antônia Aparecida Zanin ◽

Aldo Brugnera Junior ◽

...

Keyword(s):

Phosphoric Acid ◽

Laser Irradiation ◽

Co2 Laser ◽

Class Ii ◽

Composite Resins ◽

Acid Etching ◽

Dentin Hypersensitivity ◽

Significant Difference ◽

Acid Gel

Introduction: Microleakage has been reported to cause dentin hypersensitivity because of the passage of bacteria and their products through the restoration-tooth interface and is one of the main reasons for replacement of restorations. CO2 laser can be used for treatment of dentin hypersensitivity. Thus, this study aimed to evaluate in vitro the microleakage in composite restorations following surface pretreatment with acid etching and CO2 laser. Methods: Twelve human caries-free primary molars were selected. Class II cavities were prepared on occlusal mesial and occlusal distal surfaces. Specimens were randomly divided into four groups (n=6): Group 1 (G1) – 37% phosphoric acid gel etching + Beautiful-Bulk Restorative – Giomer (Shofu Inc); Group 2 (G2) – 37% phosphoric acid gel etching + SDR Bulk-Fill Flow (Dentsply); Group 3 (G3) – CO2 laser irradiation + Beautiful-Bulk Restorative – Giomer (Shofu Inc); Group 4 (G4) – CO2 laser irradiation + SDR Bulk-Fill Flow (Dentsply). Surfaces were restored with bonding agent (Natural Bond DE, DFL). Specimens were cut longitudinally and immersed in 0.5% methylene blue solution for 4 hours. Microleakage scores were assessed under a magnifying glass at x3,5 and qualitatively analyzed by scanning electron microscope (SEM). Data were analyzed using nonparametric Wilcoxon test (P < 0.05). Results: Scores prevailed between 0 and 2, however, no statistically significant difference was found among the groups (P= 0.05). Conclusion: It could be concluded that all composite resins bulk fill did not show significant difference among them regarding microleakage using either CO2 laser or 37% phosphoric acid etching.

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