Background: Postoperative erythema can be expected to occur in every patient after laser resurfacing, and pigmentary disturbances may be related to the intensity and the duration of erythema.
Objective: This study was undertaken to assess the clinical features of erythema, the factors that influence its duration, and the relation between the duration of erythema and the incidence of hyperpigmentation and hypopigmentation in skin of Asian persons after Er:YAG laser resurfacing.
Methods: A total of 218 patients (skin phototypes III to V) were recruited and treated with a short-pulsed Er:YAG laser, a variable-pulsed Er:YAG laser, or a dual-mode Er:YAG laser for skin resurfacing. Clinical assessments were performed retrospectively using medical charts and serial photographs.
Results: Postoperative erythema was observed in all patients after Er:YAG laser resurfacing with a mean duration of 4.72 months. In 98.2% of patients, erythema faded completely within 12 months. Postinflammatory hyperpigmentation was observed in 38.1% of patients after Er:YAG laser resurfacing.
Conclusions: Skin phototype, level of ablation, and depth of thermal damage caused by a long-pulsed laser appear to be important factors that affect the duration of erythema. Moreover, prolonged erythema was related to the risk of postinflammatory hyperpigmentation.
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http://dx.doi.org/10.1111/j.1524-4725.2007.33283.x | DOI Listing |
Int Orthod
January 2025
Department of Orthodontics, University of Damascus Dental School, Damascus, Syria.
Objective: This study aimed to investigate the most effective methods in controlling pain during debonding procedures.
Material And Methods: Electronic searches in published and unpublished studies were performed. Restricted to the English language and publication date up to 23/3/2024, the searches in published literature covered the following databases: MEDLINE, PubMed, EMBASE, Tripe, Web of Science, Scopus and PubMed Central.
J Prosthodont Res
January 2025
Department of Orthodontics, Osaka Dental University, Hirakata, Japan.
Purpose: To perform vertical bone augmentation on rat parietal bone by coating the inner surface of dense polytetrafluoroethylene (d-PTFE) domes with hydroxyapatite (HA) using Erbium Yttrium Aluminum Garnet (Er:YAG) pulsed laser deposition in a rat model.
Methods: The d-PTFE plate surface, α-tricalcium phosphate (α-TCP) coating, and HA coating were measured using scanning electron microscopy and X-ray diffraction to confirm the replacement of α-TCP with HA via high-pressure steam sterilization. The dome was glued to the center of the rat parietal bone and closed with periosteal and epithelial sutures.
Heliyon
November 2024
Department of Orthodontics, Faculty of Dentistry, University of Health Sciences, Turkey.
Aim: To evaluate the shear bond strength (SBS) of ceramic and metallic orthodontic brackets bonded to lithium disilicate ceramics or hybrid ceramics and subjected to different surface conditioning treatments.
Materials And Methods: In total, 300 specimens were fabricated from GC LiSi (lithium disilicate) and GC Cerasmart (hybrid) ceramic blocks. The specimens were divided into four groups according to the following surface treatments: hydrofluoric acid (HF); sandblasting with 50 μm aluminum oxide; Monobond Etch and Prime; and erbium-doped yttrium aluminum garnet (Er-YAG) laser.
Braz Dent J
July 2024
Conservative Dentistry Department, Faculty of Dentistry, Cairo University, Egypt. Postal Code: 11553.
ER:YAG laser and experimental resin-based dental adhesive loaded with functionalized carbonated apatite filler were used in this study to evaluate the dentin interaction in terms of penetration and occlusion of the dentinal tubules aiding in the control of dentin hypersensitivity (DH). Spheroidal Carbonated apatite nanoparticles (N-CAP), with an average size of 20±5 nm diameter, were synthesized, characterized, and incorporated in a universal adhesive "All Bond Universal, Bisco, USA", in (2% weight) concentration. Er:YAG laser "Lightwalker, FOTONA, EU" was adjusted to an energy output of 40mJ/ pulse and pulse repetition of 10 Hz for 10 seconds.
View Article and Find Full Text PDFLasers Med Sci
April 2024
Department of Periodontology, Hamidiye Dental Faculty, University of Health Sciences, Istanbul, Turkey.
Aim: The aim of the present study was to evaluate the efficacy of 30-angled Er:YAG laser tip and different periodontal instruments on root surface roughness and morphology in vitro.
Methods: Eighteen bovine teeth root without carious lesion were decoronated from the cementoenamel junction and seperated longitidunally. A total of 36 obtained blocks were mounted in resin blocks and polished with silicon carbide papers under water irrigation.
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