Context: Tooth surface polishing is an integral part of periodontal therapy. Enamel and cementum show a smooth surface clinically after debridement with the naked eye, but numerous surface irregularities can be detected microscopically. Air polishing is safe and effective when used by trained professionals.
Aims: The aim of the study is to evaluate and compare the surface roughness of cementum by using an air polishing device and conventional root planing with hand instruments.
Materials And Methods: A total of 45 extracted teeth stored in saline were divided into three groups randomly - Group A (conventional root planing), Group B (hand instrumentation and air polishing), and Group C (air polishing alone) - with 15 samples each. Samples were evaluated for surface roughness by using profilometer. Six parameters were checked for surface roughness.
Statistical Analysis Used: The data were collected, charted, and analyzed using one-way ANOVA with LSD method for pairwise comparisons.
Results: Least amount of surface roughness was achieved with Group C when compared with Group A and Group B. These differences were statistical significant ( < 0.0001).
Conclusions: Air polishing can effectively smoothen the root surface by removing surface irregularities which are produced hand/ultrasonic instruments. Profilometer can be effectively used to measure the surface roughness.
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http://dx.doi.org/10.4103/jisp.jisp_594_20 | DOI Listing |
Eur J Dent
March 2025
Department of Operative Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.
Objective: The aim of this study was to compare the effectiveness of various cleaning protocols on the bond strength of dual-cure resin cement following temporary cementation.
Materials And Methods: Fifty-two human third molars were sectioned to expose superficial dentin and divided into four groups: (1) fresh, noncontaminated dentin (control); (2) pumice cleaning; (3) pumice + sodium bicarbonate air polishing; and (4) pumice + 10-methacryloyloxydecyl dihydrogen phosphate (MDP) based cleaner. Groups 2, 3, and 4 were treated with noneugenol zinc oxide temporary cement, followed by their respective cleaning protocols.
Dent Mater J
March 2025
Department of Adhesive Dentistry, The Nippon Dental University, School of Life Dentistry at Tokyo.
Dentin cavity wall pretreatments to improve the bond strength of direct and computer-aided design/computer-aided manufacturing (CAD/CAM) restorations using resin composite were examined. Experiment 1 divided 18 standardized MOD cavities into three conditions: no pretreatment (Group N, control); chemical pretreatment with EDTA solution (Group C); and mechanical pretreatment with glycine air-powder polishing (Group M). Specimens were restored using direct resin composites.
View Article and Find Full Text PDFHealth Sci Rep
February 2025
Centre of Molecular Medicine and Diagnostics (COMManD), Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences Saveetha University Chennai India.
Background And Aims: Dental caries remains highly prevalent among children. This study aimed to evaluate the efficacy of aqueous broccoli extract in enhancing the microhardness of demineralized primary tooth enamel compared to a standard fluoride treatment.
Methods: An in vitro study was conducted using 30 extracted primary second molars, which were sectioned and polished.
J Mech Behav Biomed Mater
May 2025
MSciD and PhD Post-Graduate Program in Oral Science, Faculty of Dentistry, Federal University of Santa Maria (UFSM), Santa Maria, Rio Grande do Sul, Brazil. Electronic address:
The study aims to evaluate the effect of finishing and polishing protocol after CAD/CAM grinding and surface treatments of bonding surface on the topographical characteristics and fatigue behavior of 4YSZ adhesively luted to an epoxy resin substrate. Ninety 4YSZ discs (IPS e.max ZirCAD MT, Ivoclar AG) (Ø = 10 mm, thickness = 1 mm) were obtained, submitted to in-lab simulation with a CAD/CAM system bur, and randomly allocated into six groups (n = 15) based on 'Surface condition' (with or without finishing and polishing) and 'Surface treatments' (no treatment, air abrasion with 45 μm aluminum oxide and glaze spray application).
View Article and Find Full Text PDFJ Dent Res
February 2025
Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Disease of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China.
Monolithic zirconia crowns fabricated using computer-aided design and computer-aided manufacturing (CAD-CAM) via subtractive manufacturing (SM) exhibit limited bonding properties compared with other ceramics. Traditional methods such as air abrasion can improve bonding but may negatively affect the mechanical stability of zirconia. Nanoparticle jetting (NPJ), an emerging 3-dimensional-printing technology for zirconia restorations, offers the potential to create intricate structures, such as porous surfaces, with high precision.
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