1. Turki Bakhsh

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    1. Mentioned In 14 Articles

    2. Optical Evaluation of Enamel Microleakage with One-Step Self-Etch Adhesives

      Optical Evaluation of Enamel Microleakage with One-Step Self-Etch Adhesives
      Objective: In this in vitro study, cross-polarization optical coherence tomography (CP-OCT) was used to evaluate microleakage in dental composite restorations bonded to enamel with two types of one-step self-etching (SE) adhesives. Background data: One-step SE adhesives were proposed to simplify bonding of composite restorations. However, bonding of these simplified adhesive to dental enamel is still questionable. OCT is a promising diagnostic tool that allows micron-scale imaging of biological tissues and ...
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      Mentions: Turki Bakhsh
    3. Optical Quantification of Microgaps at Dentin-Composite Interface

      Optical Quantification of Microgaps at Dentin-Composite Interface
      Objective . Microgap formation between polymer-based resin system and teeth surfaces is undetectable by conventional x-rays. Therefore, this in vitro study was designed to assess the adaptation of polymeric dental fillings and microgap formation at the tooth floor using cross-polymerization optical coherence tomography (CP-OCT). Materials and Methods . Class-I cavities (4 mm diameter 1.5 mm depth) were prepared in twenty extracted molar teeth and divided into two groups: ESQ and DI ...
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      Mentions: Turki Bakhsh
    4. Effect of bioglass on artificially induced enamel lesion around orthodontic brackets: OCT study

      Effect of bioglass on artificially induced enamel lesion around orthodontic brackets: OCT study
      Background and Objective: White spot lesions (WSLs) are commonly seen after completing orthodontic treatment. Different approaches have been suggested to avoid such a complication. Recently, 45S5 bioglass (BG) was introduced as remineralizing agent. Therefore, the objective of this in-vitro study was to assess the effect of BG in remineralizing WSLs using Optical coherence tomography (OCT). Methods: Fifteen human premolar teeth were sectioned and bonded to orthodontic brackets with Transbond XT ...
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      Mentions: Turki Bakhsh
    5. Novel evaluation and treatment techniques for white spot lesions. An in vitro study

      Novel evaluation and treatment techniques for white spot lesions. An in vitro study
      Objective White spot lesions (WSLs) are commonly seen during and after orthodontic treatment. Therefore, the objective of this in vitro study was to assess the effect of 45S5‐bioglass in remineralizing WSLs using cross‐polarization optical coherence tomography (CP‐OCT) and confirm the findings by micro‐hardness test. Methods Ceramic orthodontic brackets were bonded to the buccal surface of 45 human premolars with Transbond XT primer followed by Transbond PLUS ...
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      Mentions: Turki Bakhsh
    6. Ultrastructural features of dentinoenamel junction revealed by focused gallium ion beam milling

      Ultrastructural features of dentinoenamel junction revealed by focused gallium ion beam milling
      To take full advantage of focused ion beam (FIB) in preparation of ultrathin sections of biological tissues, we have used a cryo-milling process. In this study, extracted human teeth were scanned by optical coherence tomography to inspect the samples for intactness and to determine the area of interest. Then, the selected area of interest was cross-sectioned for examination under a confocal laser scanning microscope to determine the target location of ...
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      Mentions: Turki Bakhsh
    7. Optical coherence tomography for evaluation of enamel and protective coatings

      Optical coherence tomography for evaluation of enamel and protective coatings
      Optical coherence tomography (OCT) is an interferometric imaging technique. This study aimed to employ OCT to evaluate four different resin-based materials including a coating containing glass-ionomer filler and calcium, a giomer, and two fluoride-releasing self-etch resins. The coating and its underlying and adjacent enamel were monitored using swept-source OCT (center wavelength: 1330 nm) at baseline, after 5,000 thermal cycles, and after 1, 4 and 7 days of demineralization (pH ...
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    8. Characterization of transparent dentin in attrited teeth using optical coherence tomography

      Characterization of transparent dentin in attrited teeth using optical coherence tomography
      Attrition and wear of tooth surface occur with aging and result in loss of enamel, with exposure and histological changes in dentin. Dealing with attrited teeth and restoration of the lost tissue are clinically challenging. The main objective of this study is to characterize the exposed transparent dentin in the occlusal surface of attrited teeth by optical coherence tomography (OCT). Naturally attrited, extracted human teeth with occlusal-transparent dentin were investigated ...
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    9. The Role of Novel Biophotonic Technique in Characterization of the Newly Developed Nanotechnology based Dental Composites (Thesis)

      The Role of Novel Biophotonic Technique in Characterization of the Newly Developed Nanotechnology based Dental Composites (Thesis)
      [Background and Objective]: Polymerization shrinkage and the associated contraction stresses are the major shortcoming of dental composites in dentistry, which may affect the bonding performance and result in gap formation at the tooth-restoration interface. Non-destructive assessment and monitoring of these defects are critically important. The aim of this study is to assess the toothrestoration interface and composite adaptation using swept source optical coherence tomography (SS-OCT) in combination of microtensile bond ...
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      Mentions: Turki Bakhsh
    10. Monitoring remineralization of enamel subsurface lesions by optical coherence tomography

      Monitoring remineralization of enamel subsurface lesions by optical coherence tomography
      Optical coherence tomography (OCT) is a potential clinical tool for enamel lesion monitoring. Swept-source OCT findings were compared with cross-sectional nanohardness findings of enamel. Subsurface bovine enamel lesions in three groups were subjected to (1) deionized water (control), (2) phosphoryl oligosaccharide of calcium (POs-Ca) or (3) POs-Ca with 1 ppm fluoride for 14 days. B-scans images were obtained at 1310-nm center wavelength on sound, demineralized and remineralized areas after 4 ...
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    11. Concurrent Evaluation of Composite Internal Adaptation and Bond Strength in a Class-I Cavity

      Concurrent Evaluation of Composite Internal Adaptation and Bond Strength in a Class-I Cavity
      Objectives This study investigated class-I cavity floor adaptation by swept-source optical coherence tomography (OCT) in combination with microtensile bond strength (MTBS) using different filling methods. Methods Two adhesive systems; Tokuyama Bond Force and Tri-S Bond Plus were used in conjunction with a universal composite (Estelite Sigma Quick) placed either incrementally (oblique) or in bulk with or without a flowable composite lining (Palfique Estelite LV). Ten serial B-scan images were obtained ...
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    12. Non-invasive quantification of resin–dentin interfacial gaps using optical coherence tomography: Validation against confocal microscopy

      Non-invasive quantification of resin–dentin interfacial gaps using optical coherence tomography: Validation against confocal microscopy
      ...ing may be available for this article. To view references and further reading you must purchase this article. Turki A. Bakhsh^a^, ^b, Alireza Sadr^b^, ^Corresponding Author Contact Information ^, ^E-mail The Correspondi...
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    13. Demineralization Affects Refractive Indices of Human Enamel and Dentin

      Demineralization Affects Refractive Indices of Human Enamel and Dentin
      Objectives: Dental hard tissues and biomaterials can be non-destructively assessed using optical coherence tomography (OCT), an emerging diagnostic tool. Swept Source (SS)-OCT has an improved imaging resolution and speed. Depth resolved data obtained in B-scans can be used to assess the quality and depth-resolved information on the tissues. The measurements are affected by the optical properties of the tissue, such as refractive index (RI). The aim of this study ...
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    14. Comparison Between SS-OCT & CLSM in Assessment of Restoration Defects

      Comparison Between SS-OCT & CLSM in Assessment of Restoration Defects
      Objectives: Composite restorations suffer from polymerization shrinkage upon curing, which leads to gap formation at the tooth-restoration interface. These gaps might weaken the restoration integrity and vary in size. The aim of this study is to assess the tooth-restoration interface using swept source optical coherence tomography (SS-OCT) and to compare the findings with confocal laser scanning microscope (CLSM). Methods: Round class-I cavities 3mm in diameter and 1.5mm in depth ...
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    15. Real-time Tomographic Monitoring of Composite Restoration Placement Using SS-OCT

      Real-time Tomographic Monitoring of Composite Restoration Placement Using SS-OCT
      Objectives: The aim of this study was to use swept-source optical coherence tomography (SS-OCT) for real-time tomographic assessment of tooth/restoration complex during placement of resin composite. Methods: An SS-OCT system with a laser center wavelength of 1310nm was used to record tomographic images and videos during bulk placement and light-polymerization of four combinations of composite/adhesive materials; two low-shrinkage composites (Filtek Silorane/Adhesive and Kalore/SE Bond), and one ...
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  2. About Turki Bakhsh

    Turki Bakhsh

    Turki A. Bakhsh is an Associate Professor in Operative Dentistry Department, Faculty of Dentistry, King Abdulaziz University in Saudi Arabia.