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Articles 1 - 30 of 186
Full-Text Articles in Dental Materials
The Creation Of An Innovative Oral Health Assessment Survey, Purna Patel
The Creation Of An Innovative Oral Health Assessment Survey, Purna Patel
Electronic Theses, Projects, and Dissertations
Background Oral health is an important factor to maintain overall health and well-being, such as students’ knowledge, attitude, and practice. Currently, there is a limited amount of research related to oral health awareness in college students.
Objective The purpose of the study was to define the importance of oral health and investigate college students’ understanding related to oral health. Moreover, research shows how students are protecting their oral hygiene.
Results: The outcomes revealed the college student's awareness and understanding of oral health. According to the survey questions, students believe that dental health is a significant aspect of overall health management. …
Enhancing Dental Aligners With Direct 3d Printing Manufacturing, Erin Clark, Lauren Ickes, Tyler Madison
Enhancing Dental Aligners With Direct 3d Printing Manufacturing, Erin Clark, Lauren Ickes, Tyler Madison
Williams Honors College, Honors Research Projects
Replacement of thermoforming with direct 3d printed aligners, molding appliances for dental and alveolar movement. Currently the process involved requires 3d printing models and plastic thermoforming, trimming and polishing to fabricate the end product. If possible a product that could be 3d printed that had stress retention, crack resistance, and stain resistance properties delivered in thickness between .030 and .040 inches.
Quantification Of Dental Fissures Through Occlusal Topography Analysis, Duru Erkan
Quantification Of Dental Fissures Through Occlusal Topography Analysis, Duru Erkan
Biological Sciences Undergraduate Honors Theses
Narrow, deep, and elaborate dental fissures are widely believed to increase the predisposition of enamel to develop carious lesions as these surfaces are thought to be ideal for cariogenic bacteria to adhere to. Therefore, dentists prescribe sealants as a preventative measure for patients with such fissures to avoid tooth decay. Yet to date, there is no objective data supporting the notion that fissure morphology actually affects caries susceptibility, nor is there a quantifiable, clinically practical method to characterize fissure patterns expected to increase risk of caries disease.
In this study, three new methods to quantitatively characterize fissure pattern in mandibular …
The Effect Of Crowding On The Accuracy Of 3d Printed Aligners, Tonya Spangler
The Effect Of Crowding On The Accuracy Of 3d Printed Aligners, Tonya Spangler
Theses and Dissertations
Purpose: To evaluate the accuracy of three-dimensionally (3D) printed aligners compared to conventional vacuum-formed thermoplastic aligners with varying levels of dental crowding.
Methods: Digital intraoral scans of 10 different cases were assigned to their respective groups (n=10, each, 30 total) as follows: no crowding (control), moderate crowding, and severe crowding. Using 3Shape software, digital aligner samples were created in standard tessellation language (STL) file format and randomly 3D printed. The same STL files of each case were also sent to a dental laboratory for the fabrication of vacuum-formed samples, which is the current technology used for manufacturing aligners. The intaglio …
Comparison Of Volumetric Changes At Implant Connector Among Three Different Types Of Abutment After Cyclic Loading, Piyawan Jirayusakamol
Comparison Of Volumetric Changes At Implant Connector Among Three Different Types Of Abutment After Cyclic Loading, Piyawan Jirayusakamol
Chulalongkorn University Theses and Dissertations (Chula ETD)
The aim of this study was to compare the volumetric change of dental implant among three different types of abutments after cyclic loading.Thirty dental implants (4.1x10 mm., Straumann®) were used .All of them were inserted in acrylic resin block with usual surgical protocol to gain primary stability and be able to retrieve for volumetric measurement later. Ten of each dental implant connected with Titanium abutment (Group1: Variobase abutment Straumann®), Gold abutment (Group2: UCLA abutment Straumann®) and Zirconia abutment (Group 3: Care abutment Straumann®) consecutively. Then all specimen was submitted to cyclic loading (1x106 cycles, axial load, 100N, 15 Hz) at …
Association Among Anterior Maxillary Dental Arch Form, Alveolar Bone Thickness And Sagittal Root Position Of Maxillary Central Incisor : A Cone Beam Computed Tomography Analysis, Suttikiat Somvasoontra
Association Among Anterior Maxillary Dental Arch Form, Alveolar Bone Thickness And Sagittal Root Position Of Maxillary Central Incisor : A Cone Beam Computed Tomography Analysis, Suttikiat Somvasoontra
Chulalongkorn University Theses and Dissertations (Chula ETD)
Purpose: This study evaluated the association among the dental arch form, age-sex groups, and sagittal root position regarding alveolar bone thickness in the maxillary central incisor using cone-beam computed tomography (CBCT) images. Materials and Methods: CBCT images of 280 patients were categorized based on the dental arch form and age-sex groups. Five hundred and sixty sagittal CBCT images of the maxillary central incisors were examined to measure the labial and palatal bone thickness at the root apex level, at the mid-root level and 3 mm apically from cemento-enamel junction, with SRP classification. Chi-square, Kruskal-Wallis test, and multiple linear regression were …
Catechol-Containing Copolymers As An Active Ingredient For Denture Adhesives, Vincent Ying Wun Kong
Catechol-Containing Copolymers As An Active Ingredient For Denture Adhesives, Vincent Ying Wun Kong
Electronic Thesis and Dissertation Repository
Moisture inside the mouth adds challenge to making denture adhesives formulations. Some formulations have zinc to enhance adhesion on wet skin despite knowing the health hazards. Inspired by mussel foot proteins’ catechol unit’s strong underwater adhesion, nine catechol-containing copolymers (P1A-P3C) were synthesized by free radical polymerization of 3,4-dimethoxystyrene (3,4- DMS) with different styrene derivatives followed by deprotection. P1A-P3C were used to make Fn(P)-C-PBS denture adhesive formulations which had suitable shear stresses around ≥ 5 kPa satisfying ISO 10873. In-situ NMR studies of free radical polymerization of 3,4 - DMS and styrene derivatives allowed computation of their reactivity ratios showing all …
A Critical Review And Finite Element Study Of Structural Relaxation In Veneered 3y-Tzp Dental Structures, Prashant S. Shelar
A Critical Review And Finite Element Study Of Structural Relaxation In Veneered 3y-Tzp Dental Structures, Prashant S. Shelar
Electronic Thesis and Dissertation Repository
Yttria stabilized Tetragonal Zirconia Polycrystal (3Y-TZP) materials veneered with porcelain are preferred for clinical practice due to their bio-functionality, biocompatibility, and affordability. However, these materials are often subjected to premature clinical failures due to combination of subsurface flaws and tensile stresses within porcelains. This work focuses on performing a critical literature review and evaluating veneer characteristics, i.e. structural relaxation, to form a suitable explanation for the development of subsurface stresses. User material subroutines, UEXPAN and UTRS are developed, validated and integrated in ABAQUS finite element solver. With the use of validated models, it is shown that faster cooling rates and …
Accuracy Of Digital Impressions At Varying Implant Depths: An In-Vitro Study, Vivia Sequeira
Accuracy Of Digital Impressions At Varying Implant Depths: An In-Vitro Study, Vivia Sequeira
Graduate Theses, Dissertations, and Problem Reports
Introduction: Implants placed at variable depths may vary the amount of visible scannable surface of a scan body. Intraoral scanner technology uses advanced optical principles to record the surface of the scan body to accurately capture the implant position.
Purpose: To investigate the effect implant placement depth has on the accuracy of digital implant impressions using an intraoral scanner.
Materials & Methods: A partially edentulous gypsum master model was fabricated to allow the positioning of a single implant analog at different depths. Four groups based on the planned implant depths of 0, 3, 6 and 7mm and corresponding visibility of …
A Comparison Of Implant Stability Between Two Dental Implant Designusing Two Different Stability Measuring Technique, Chanikarn Chaksupa
A Comparison Of Implant Stability Between Two Dental Implant Designusing Two Different Stability Measuring Technique, Chanikarn Chaksupa
Chulalongkorn University Theses and Dissertations (Chula ETD)
Objective To investigate the primary stability of aggressive thread design implant comparing to nonaggressive thread design implant and to evaluate the correlation between ISQ values and IST values. Materials and methods 96 implants were used in this study. 48 BLT Straumann® and 48 BLX Straumann® were used. All implants were digitally planned and placed in 3D printed model using computer assisted guided surgery. The edentulous area at models were packed with randomized pattern of four different kinds of polyurethane blocks to replicate mixed cancellous bone. Postoperative implant stability measurement was performed immediately after implant insertion. Implant stability was measured by …
Accuracy Comparison Of Dental Implants Obtained By Dynamic Cais In All-On-4 Edentulous Area Among Different Types Of Bone Density: An In Vitro Study, Jutasinee Pornpolsarun
Accuracy Comparison Of Dental Implants Obtained By Dynamic Cais In All-On-4 Edentulous Area Among Different Types Of Bone Density: An In Vitro Study, Jutasinee Pornpolsarun
Chulalongkorn University Theses and Dissertations (Chula ETD)
Background: Determination of available bone is particularly important in implant placement quality of bone can affect the accuracy implant placement. Currently, Dynamic navigation system illustrated the improvement of implant accuracy, The accuracy of implant placement using computer-assisted implant placement system (CAIS) is unknown. As a result, the goal of this study was to see how bone density affected implant placement accuracy with Dynamic CAIS. Purpose: To determine the effect of different bone density in the accuracy of implant placement using dynamic navigation system Materials and Methods: The study's overall design includes a single doctor planning each implant using a CBCT …
Clinical Accuracy Between Planned And Placed Posterior Implant Position Of Two Static Implant Planning Software Programs In Inexperienced Operators, Wanwanat Singthong
Clinical Accuracy Between Planned And Placed Posterior Implant Position Of Two Static Implant Planning Software Programs In Inexperienced Operators, Wanwanat Singthong
Chulalongkorn University Theses and Dissertations (Chula ETD)
Objective: This study aimed to evaluate and examine the difference in posterior implant positioning between the planned and placed positions when inexperienced operators used two static implant planning software packages following a fully guided implant surgery protocol in the clinical field. Materials and methods: Twenty-four patients who needed single posterior implant placement were randomly divided into two groups based on the used implant planning software (group 1, coDiagnostiX, n=12; group 2, Implant Studio, n=12). The dataset of the placed implant position, generated from digitizing the implant impression, was superimposed on the planned implant position. The number of horizontal, angular, and …
The Relative Occlusal Force Of Natural Tooth Adjacent To Distal Extension Implant Support Fixed Prosthesis Using T-Scan Analysis : A Cross Sectional Study, Chin Purintarapiban
The Relative Occlusal Force Of Natural Tooth Adjacent To Distal Extension Implant Support Fixed Prosthesis Using T-Scan Analysis : A Cross Sectional Study, Chin Purintarapiban
Chulalongkorn University Theses and Dissertations (Chula ETD)
Objective: This cross-sectional study aimed to compare the relative occlusal force between implant in the distal end and tooth adjacent to implant in maximum intercuspation. Methodology: Patients with implant restoration replacing teeth in free end space adjacent to natural tooth were recalled. The occlusion is examined as shim stock passes through the occluded tooth in heavy or light bites. The heavy bite or a light bite with shim stock that cannot pull through is HB1 or LB1. If the shim stock can pull through it is considered HB0 or LB0. The implant is classified into 3 groups, HB1LB0, HB1LB1, and …
A Comparison Of Implant Stability Between Two Implant Systems Using Guided Surgery In Inexperienced Surgeons, Pinmuk Supachaiyakit
A Comparison Of Implant Stability Between Two Implant Systems Using Guided Surgery In Inexperienced Surgeons, Pinmuk Supachaiyakit
Chulalongkorn University Theses and Dissertations (Chula ETD)
Aim: To investigate the implant stability in relation to two different implant designs, a cylindrical shaped single threaded design (CS/ST) and a tapered shaped double threaded design (TS/DT) using RFA over the first 8 weeks. Materials and Methods: 28 implants were randomly allocated into two groups and were placed as single tooth implant in the posterior arch. CBCT scan was used to determine the bone density and the implants were placed with guided surgical template by inexperienced surgeons which were prepared with the same implant planning software. The implant stability was measured using the RFA over the first 8 weeks …
The Effect Of Pigmentation On Latex And Non-Latex Orthodontic Elastics, Dustin Wilson
The Effect Of Pigmentation On Latex And Non-Latex Orthodontic Elastics, Dustin Wilson
Electronic Thesis and Dissertation Repository
Background: Intraoral Elastics have been widely used in Orthodontics for well over 100 years. Changes in material composition, manufacturing and addition of color to elastics has shown to effect force levels over time.
Aim: The purpose of the study was to determine the effect of pigmentation on force levels and their degradation over time in both Latex and Non-Latex orthodontic intraoral elastics.
Materials & Methods: Groups consisted of elastics in Latex from American Orthodontics in both natural and four different colors, American Orthodontics Non-Latex in natural, Ormco Latex in both natural and four different colors, Auradonics Latex in both natural …
Effect Of Nanofiller Coating And Loading On Facial Elastomer Physical Properties, Rahmi K. Aulia
Effect Of Nanofiller Coating And Loading On Facial Elastomer Physical Properties, Rahmi K. Aulia
Theses & Dissertations
Current materials used for facial prostheses are far from being desirable, and improved properties with “skin-like” feel are needed. This study evaluates property changes induced by sequential additions of uncoated and hydrophobic-coated nano-SiO2 to polydimethylsiloxane (PDMS) and compares them with those measured for conventional submicron SiO2-filled materials. Each filler type was sequentially added to vinyl-terminated PDMS at 0%, 0.5%, 5%, 10%, and 15% by weight. Tensile, tear, Durometer hardness, translucency and viscoelastic properties were evaluated, with hardness and translucency also evaluated following 3000 hours of outdoor weathering. Results demonstrated that 15% coated nano-SiO2-filled PDMS materials …
Metal Additive Manufacturing For Fixed Dental Prostheses, Mai El Najjar
Metal Additive Manufacturing For Fixed Dental Prostheses, Mai El Najjar
Electronic Thesis and Dissertation Repository
The use of additive manufacturing (AM) in dentistry has gained momentum in recent years. However, high initial costs and uncertainty surrounding the quality of AM products are considered barriers to their use. This research compared dental substructures fabricated by AM versus conventional casting and milling.
Cobalt-chromium alloy rectangular bars and three-unit bridge substructures were fabricated by AM, casting or milling. Bars manufactured by AM exhibited superior flexural strength, shear bond strength of porcelain coating, and Vickers hardness. Bridge substructures fabricated by AM showed similar flexural stiffness to cast, similar flexural loads at failure to milled and cast, and overall accuracy …
An Investigation Into The History, Science, And Future Of Dental Filling Materials, Natalia Kaczor
An Investigation Into The History, Science, And Future Of Dental Filling Materials, Natalia Kaczor
Honors Theses
No abstract provided.
The Influence Of Fatigue Load To Various Adhesive Resin Luting Agents In A Zirconia-Reinforced Lithium Silicate Ceramic Bonded To Dentin, Ratikorn Watananiyom
The Influence Of Fatigue Load To Various Adhesive Resin Luting Agents In A Zirconia-Reinforced Lithium Silicate Ceramic Bonded To Dentin, Ratikorn Watananiyom
Chulalongkorn University Theses and Dissertations (Chula ETD)
Purpose. To examine fatigue failure load value of etch-and-rinse and self-adhesive luting systems used to bond ZLS to dentin. Moreover, this study seeks to evaluate whether the application of unfilled resin on silanated ceramic intaglio surface could improve fatigue failure load value. Methods. Vita Suprinity (VS, Vita Zahnfabrik) blocks were sectioned into cylindrical shape (5 mm in diameter and 1.5 mm in height). All VS were crystallized, and bonded surfaces were treated as followed: Heliobond (HB, Ivoclar Vivadent) application after silanization and non-application of HB. Each VS was cemented to each flat occlusal dentin surface of extracted human molar, following …
Effect Of Desensitizing Toothpaste Containing Calcium Sodium Phosphosilicate On Microtensile Bond Strength Of Adhesive Systems, Warin Sittiwaitayaporn
Effect Of Desensitizing Toothpaste Containing Calcium Sodium Phosphosilicate On Microtensile Bond Strength Of Adhesive Systems, Warin Sittiwaitayaporn
Chulalongkorn University Theses and Dissertations (Chula ETD)
Purpose: To evaluate the effect of a desensitizing toothpaste, containing calcium sodium phosphosilicate, on microtensile bond strength of adhesive systems treated to dentine. Methods: Fifty-two human third molars were embedded into acrylic resin, and cut to expose flat dentin surface. The specimens were randomly divided into two groups, 1) no brushing, and 2) brushing with Sensodyne Repair&Protect (GSK, London, UK) for 10,000 cycles with a V-8 cross brushing machine (Sabri Dental Enterprise, Inc., USA). Subsequently, both groups were divided into three groups for resin composite build-up using different adhesive agents (OptiBond FL® (Kerr, Orange, CA, USA), Clearfil SE Bond® (Kuraray …
The Visual And Spectrophotometric Effect Of External Bleaching On Omnichroma Resin Composite And Natural Teeth, Michael Brian Evans
The Visual And Spectrophotometric Effect Of External Bleaching On Omnichroma Resin Composite And Natural Teeth, Michael Brian Evans
Graduate Theses, Dissertations, and Problem Reports
Objective: To determine the visual and spectrophotometric effect external tooth bleaching has on natural tooth structure and OMNiCHROMA composite at various number of treatments. Variables were compared to determine if there is a detectable difference between the composite and the tooth before and after bleaching.
Methods: Preparation and restoration of 25 previously extracted teeth was completed. OMNiCHROMA composite was used. Each tooth was measured visually with a VITA shade guide and a colorimeter. Measurements were recorded before bleaching, after 5 and 10 treatments. Statistical analysis was completed and ΔE values between the composite and tooth were compared between the 3 …
The Stains Of Various Lipsticks On Maxillary Anterior Ceramic Veneers, Ratirat Chotipanvidhayakul
The Stains Of Various Lipsticks On Maxillary Anterior Ceramic Veneers, Ratirat Chotipanvidhayakul
Chulalongkorn University Theses and Dissertations (Chula ETD)
This clinical study aims to determine differences in lipstick stains between ceramic veneers and natural teeth. Types of lipsticks affected lipstick stains on ceramic veneers and natural teeth were also investigated. A total of 30 patients were divided into two groups: ceramic-veneer (CV) group and natural-teeth (NT) group with 15 patients in each group. Seven lipstick types: Gloss & Balm, Gloss & Sheer, Cream, Liquid matte, Matte & Frost, Satin, and Matte were applied on patients’ lips. Six labial surfaces of maxillary anterior teeth were evaluated for the frequency of lipstick staining with each type of lipstick. Thus, 90 maxillary …
Exploring The Use Of Pulsed Erbium Lasers To Retrieve A Zirconia Crown From A Zirconia Implant Abutment, Ahmed Elkharashi
Exploring The Use Of Pulsed Erbium Lasers To Retrieve A Zirconia Crown From A Zirconia Implant Abutment, Ahmed Elkharashi
Theses and Dissertations
Removal of zirconia crowns, commonly used as cement-retained implant fixed restorations, can be challenging. Conventional methods of crown removal are time consuming and often leave irreparable damage to the crown, which can be costly to patients and practitioners. This research explored the use of two different types of pulsed erbium lasers, erbium-doped yttrium aluminum garnet laser (Er:YAG) and erbium, chromium-doped yttrium, scandium, gallium and garnet (Er,Cr:YSGG), as non-invasive tools to retrieve cemented zirconia crowns from zirconia implant abutments. Times needed to remove the crowns were recorded and analyzed using ANOVA (��=0.05). No statistical differences between the debond times of each …
The Effectiveness Of Resin-Modified Glass Ionomer Varnish In Preventing White Spot Lesions During Fixed Appliance Orthodontic Therapy: An In Vitro Study, Bradley Herman
Theses & Dissertations
The purpose of this investigation was to evaluate the efficacy of a glass ionomer varnish in preventing demineralization of enamel adjacent to and some distance away from an orthodontic bracket. Forty extracted human molars were divided into four different treatment groups (varnish in distilled water, varnish in acetic acid, enamel in acetic acid, and enamel in distilled water). Two 3 x 3 mm graphite windows were drawn on the tooth, one adjacent to the bracket and one 3 mm away from the first window, indicating the scanning area. Varnish was applied to the teeth in the varnish groups and all …
Marginal Staining Between Pressed Lithium Disilicate Ceramic Crowns And Direct Restorative Materials By Various Fluids : A Microleakage Study., Sarah Ann Jestel
Marginal Staining Between Pressed Lithium Disilicate Ceramic Crowns And Direct Restorative Materials By Various Fluids : A Microleakage Study., Sarah Ann Jestel
Electronic Theses and Dissertations
When treating patients with existing restorations in which indirect restoration placement is indicated and crown lengthening surgery is contraindicated, dentists may choose to finish the crown margin on an existing restoration. The interface between the two dental restorations (resin composite and ceramic crown) may be more susceptible to microleakage and fluid staining, reducing restoration longevity. In this study, 80 extracted molars received indirect restoration margins finished on different direct restorative materials (resin-modified glass ionomer and conventional, flowable, and bulk fill nano-hybrid resin composite) and subjected to common staining fluids of coffee, tea, red wine, or Coca-Cola. If the clinician must …
Mass Spectrometry-Based Proteomics Analysis Of Bioactive Proteins In Emd That Modulate Adhesion Of Gingival Fibroblast To Improve Bio-Integration Of Dental Implants, David Zuanazzi Machado Jr
Mass Spectrometry-Based Proteomics Analysis Of Bioactive Proteins In Emd That Modulate Adhesion Of Gingival Fibroblast To Improve Bio-Integration Of Dental Implants, David Zuanazzi Machado Jr
Electronic Thesis and Dissertation Repository
Titanium implants are used in dental practice to replace damaged or lost teeth. The implant needs to integrate with the surrounding gingiva to protect it against bacterial invasion that leads to implant loss. The biointegration is dependent on the implant surface that interacts with proteins from biological fluids to modulate tissues response. Tailoring the surface with specific proteins from the enamel matrix derivative (EMD) would be beneficial to improve the implant-gingiva interface since EMD can affect various cells including gingival fibroblasts. A surface-affinity approach using three different titanium surfaces and saliva was utilized as a model in combination with tandem …
Designing Biomimetic Implant Surfaces To Promote Osseointegration Under Osteoporotic Conditions By Revitalizing Mechanisms Coupling Bone Resorption To Formation, Ethan M. Lotz
Theses and Dissertations
In cases of compromised bone remodeling like osteoporosis, insufficient osseointegration occurs and results in implant failure. Implant retention relies on proper secondary fixation, which is developed during bone remodeling. This process is disrupted in metastatic bone diseases like osteoporosis. Osteoporosis is characterized low bone mass and bone strength resulting from either accelerated osteoclast-mediated bone resorption or impaired osteoblast-mediated bone formation. These two processes are not independent phenomena. In fact, osteoporosis can be viewed as a breakdown of the cellular communication connecting bone resorption to bone formation. Because bone remodeling occurs at temporally generated specific anatomical sites and at different times, …
The Efficacy Of A Fluoride-Containing Orthodontic Primer In Preventing Demineralization, Alyssa G. Ricci
The Efficacy Of A Fluoride-Containing Orthodontic Primer In Preventing Demineralization, Alyssa G. Ricci
Theses and Dissertations
Purpose: To evaluate the efficacy of a fluoride-containing orthodontic primer in preventing demineralization adjacent to brackets and compare the quality of enamel on tooth surfaces that received interproximal reduction (IPR).
Methods: Patients at the VCU Orthodontic clinic who consented to orthodontic treatment involving extraction of at least 2 premolars were recruited to this pilot clinical study. Brackets were bonded to premolars using one of two primers, fluoride-containing experimental or control. IPR was also performed, and the experimental primer was applied to randomly selected teeth. Extracted teeth were analyzed visually for the presence of white spot lesions (WSLs). Micro-CT analyses were …
Effect Of Shear Bond Strength With Novel Apc™ Flash-Free Brackets And Different Bonding Protocol: An In Vitro Study, Carl Bernstein
Effect Of Shear Bond Strength With Novel Apc™ Flash-Free Brackets And Different Bonding Protocol: An In Vitro Study, Carl Bernstein
Graduate Theses, Dissertations, and Problem Reports
Background and Objectives: In today’s time, there is an increasingly crowded field of competition vying over a small subset of the population. Now, more than ever it is imperative to compete with efficiency and esthetics. Each step for orthodontic bonding procedures increases the chance for error to occur. However, orthodontic bracket, etchant, sealant, and adhesive material has the ability to improve bond strength and final outcome for the patient and provider. The aim of this study was to determine effective bonding protocols for Advanced Clarity APC™ Flash-Free Brackets and to determine if adhesive remains on enamel or orthodontic bracket after …
Effect Of Clear Aligner Therapy On Masticatory Muscle Tenderness And Orthodontic Pain, Johnny Tran
Effect Of Clear Aligner Therapy On Masticatory Muscle Tenderness And Orthodontic Pain, Johnny Tran
Electronic Thesis and Dissertation Repository
Introduction: Patients undergoing orthodontic clear aligner therapy (CAT) may experience discomfort in their teeth and jaws, and often present with visible wear on their aligners. This multi-site prospective clinical study aimed to analyze tooth pain and masticatory muscle tenderness in patients subjected to CAT with Invisalign©.
Methods: Twenty-seven healthy adults undergoing treatment with Invisalign© were recruited from three university-based orthodontic clinics. Tooth pain and muscle tenderness were reported on visual analog scales in pain diaries prior to, and after starting CAT. Pressure pain thresholds (PPT) measured using pressure algometers were used to assess somatosensory changes in trigeminal and extra-trigeminal locations. …