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Full-Text Articles in Dentistry

Palatal Expansion Using The Invisalign Palatal Expander, Hassan Chihab Jul 2026

Palatal Expansion Using The Invisalign Palatal Expander, Hassan Chihab

ETDs from 2020-2029

Palatal expansion has been used in orthodontics to treat a narrow maxilla and to primarily correct posterior dental crossbites. In younger patients, palatal expansion can readily be achieved through opening of the mid-palatal suture, as it is not fused at that age. As the mid-palatal suture matures, expansion will gradually be difficult to achieve, and more dental expansion is obtained rather than skeletal. In addition, there is a tendency to get more dental tipping. Palatal expansion has been recommended not only to correct crossbites but also to improve breathing in patients with sleep disorders such as obstructive sleep apnea (OSA). …


A Retrospective Analysis Of Dental Needs Identified By Intraoral Videography In Elderly Patients With Mild To Moderate Dementia In Long-Term Care Facilities: Feasibility Of A Novel Screening Mechanism For Oral Health, Kevin Hahn Jun 2026

A Retrospective Analysis Of Dental Needs Identified By Intraoral Videography In Elderly Patients With Mild To Moderate Dementia In Long-Term Care Facilities: Feasibility Of A Novel Screening Mechanism For Oral Health, Kevin Hahn

ETDs from 2020-2029

This retrospective analysis explores the viability of employing intraoral videography to identify dental needs among long-term care (LTC) facility residents with cognitive impairment and/or mild to moderate dementia. Inadequate oral hygiene in these individuals can lead to dental plaque buildup, oral dysbiosis, gingivitis, dental caries, and periodontitis. Such conditions can impact both oral and systemic health. However, delivering oral hygiene in LTC facilities faces challenges due to care-resistant behavior triggered during mouth care. And many individuals in residential LTC facilities do not have access to dental care outside of severe emergencies due to cost, reimbursement patterns, lack of access to …


Optimization Of Post-Curing Conditions For 3d-Printed Dental Restorations: Mechanical And Color Stability Analysis, Mohammed Hammamy Jun 2026

Optimization Of Post-Curing Conditions For 3d-Printed Dental Restorations: Mechanical And Color Stability Analysis, Mohammed Hammamy

ETDs from 2020-2029

Additive manufacturing has become increasingly utilized in dentistry for the fabrication of definitive restorations and provisional prostheses. However, the performance of 3D-printed materials is highly dependent on post-processing procedures, particularly post-curing, which influences the degree of polymerization and final material properties. The purpose of this study was to evaluate the effect of different post-curing protocols on the mechanical performance and color stability of a 3D-printed dental restorative material.Disc-shaped specimens were fabricated using a digital light processing (DLP) 3D printer and subjected to various post-curing conditions, including standard dental LED curing, nitrogen-assisted curing, glycerin immersion curing, Phrozen UV curing, VALO LED …


Toothbrush Resistance Of Resin-Based Stain And Glaze Materials Applied To 3d-Printed Denture Resins, Panisa Homyai Jun 2026

Toothbrush Resistance Of Resin-Based Stain And Glaze Materials Applied To 3d-Printed Denture Resins, Panisa Homyai

ETDs from 2020-2029

Background: Three-dimensionally printed (3D-printed) dentures are commonly fabricated using a single tooth-colored resin, after which surface stain and glaze coatings are applied to reproduce gingival coloration, enhance the esthetic appearance and improve clinical longevity of characterized prostheses. However, daily oral hygiene procedures such as toothbrushing degrade surface coatings, leading to discoloration, increased plaque retention, and deterioration of esthetic appearance. Objectives: To evaluate the effect of stain timing and glaze application on the surface gloss and roughness of a three-dimensionally printed denture resin before and after simulated toothbrushing Methods: 80 disc-shaped specimens (12 mm in diameter and 3 mm in thickness) …


Comparative Evaluation Of Translucency, Fluorescence, And Structural Analysis Of 3d-Printed Vs. Conventionally Fabricated 3y, 4y And 5y Zirconia, Surabhi Chhabra Jun 2026

Comparative Evaluation Of Translucency, Fluorescence, And Structural Analysis Of 3d-Printed Vs. Conventionally Fabricated 3y, 4y And 5y Zirconia, Surabhi Chhabra

ETDs from 2020-2029

Statement of Problem: Additive manufacturing has emerged as an alternative to conventional milling for zirconia-based dental restorations because of its potential to reduce material waste and increase design flexibility. However, whether 3D-printed zirconia can provide optical and structural properties comparable with those of conventionally milled zirconia for esthetic applications remains unclear. Purpose: The purpose of this in vitro study was to compare the optical properties of 3D-printed zirconia and conventionally milled 3Y, 4Y, and 5Y zirconia, as measured by translucency and fluorescence, and to evaluate their structural characteristics, as measured by density, porosity, phase composition, and surface morphology. Materials and …


Awareness And Knowledge Of Juvenile Idiopathic Arthritis Among Orthodontic And Oral And Maxillofacial Surgery Specialties In The United States., Kavita Nayar Jan 2026

Awareness And Knowledge Of Juvenile Idiopathic Arthritis Among Orthodontic And Oral And Maxillofacial Surgery Specialties In The United States., Kavita Nayar

ETDs from 2020-2029

Introduction: Juvenile Idiopathic Arthritis (JIA) is the most common chronic pediatric arthritis, frequently involving the temporomandibular joint (TMJ) and resulting in facial growth disturbances, functional impairment, and complex multidisciplinary treatment needs. Despite its clinical relevance, limited awareness and inconsistent management strategies exist among specialists who are involved in the care of these patients including orthodontists, oral and maxillofacial surgeons and rheumatologists. This study aimed to evaluate the understanding, knowledge and interdisciplinary management practices between board-certified orthodontists and oral and maxillofacial surgeons (OMSs) across the United States regarding JIA. Materials and Methods: A cross-sectional survey was distributed electronically via Qualtrics to …


Psychosocial Outcomes In Adults With Cleft Lip And Palate: Exploring The Relationship Between Cleft Severity, Mental Health, And Treatment Satisfaction, Haley Hannabass Jan 2026

Psychosocial Outcomes In Adults With Cleft Lip And Palate: Exploring The Relationship Between Cleft Severity, Mental Health, And Treatment Satisfaction, Haley Hannabass

ETDs from 2020-2029

Introduction:This study aimed to examine psychosocial outcomes in adults with cleft lip and palate (CL/P), focusing on how cleft severity (unilateral versus bilateral) influences depression, anxiety, social functioning, oral health–related quality of life, and satisfaction with treatment outcomes. Individuals born with clefts often continue to face psychosocial challenges even after surgical repair, and limited research has compared how these outcomes differ by cleft type in adulthood. Materials and Methods:A cross-sectional design was used, including 24 adults aged 18 years and older who had undergone cleft repair and were finished or in active orthodontic treatment at UAB. Participants completed an online …


Cbct Evaluation Of Planned Vs. Achieved Expansion And Buccal Bone Thickness In Phase I Orthodontic Cases Treated With Clear Aligners, Jared Teeples Jan 2026

Cbct Evaluation Of Planned Vs. Achieved Expansion And Buccal Bone Thickness In Phase I Orthodontic Cases Treated With Clear Aligners, Jared Teeples

ETDs from 2020-2029

Introduction: Within orthodontics, CBCT technology has been used to analyze tooth movement with both fixed appliances and clear aligners. However, little research has evaluated alveolar bone remodeling outcomes in growing patients treated with clear aligner expansion. Methods: This study compared pre-treatment (T0) and post-treatment (T1) CBCTs of Phase I patients treated with clear aligners who had expansion planned in the Invisalign® ClinCheck. CBCTs were collected and analyzed, including 27 maxillary and 22 mandibular arches. The aims were (1) to compare planned vs. actual expansion and (2) to evaluate the arch width (AW) and alveolar bone changes before and after treatment. …


Effects Of Probiotic Lactobacilli On Streptococcus Mutans: Implications For Early Childhood Caries, Walaa Al-Turki Sep 2025

Effects Of Probiotic Lactobacilli On Streptococcus Mutans: Implications For Early Childhood Caries, Walaa Al-Turki

All ETDs from UAB

Effects of Probiotic Lactobacilli on Streptococcus mutans: Implications for Early Childhood Caries WALAA MOHIEDEN AL TURKI DENTISTRY ABSTRACT Purpose: Probiotic Lactobacillus species have been shown to have beneficial effects against early childhood caries (ECC) by inhibiting the growth of cariogenic bacteria. However, the acidogenicity of Lactobacillus spp. could have potential carcinogenic effect. The objective of this study was to investigate the effects of probiotic lactobacilli and cariogenic lactobacilli on the growth, biofilm formation, and acid production of Streptococcus mutans (S. mutans). Methods: Growth competition between probiotic L. rhamnosus GG (L-GG) or caries-associated L. rhamnosus M72-26 (L-M72) and S. mutans UA159 …


Water Absorption, Surface Roughness And Flexural Strength Assessment Of Peek With And Without Aging., Pranjal Ramchandra Daundakr Sep 2025

Water Absorption, Surface Roughness And Flexural Strength Assessment Of Peek With And Without Aging., Pranjal Ramchandra Daundakr

All ETDs from UAB

Polymethyl methacrylate (PMMA) has been the primary material for complete denture bases since its introduction in 1936 due to its esthetics, affordability, and ease of processing. However, PMMA demonstrates well-documented shortcomings, including relatively low flexural strength, high water absorption, and susceptibility to surface wear. These limitations lead to fractures, loss of occlusal vertical dimension (OVD), frequent relines, and compromised esthetics. Even advanced formats such as CAD-CAM milled and 3D printed PMMA remain prone to dimensional instability, microbial colonization, and long-term degradation. Polyetheretherketone (PEEK), a high-performance thermoplastic originally used in orthopedic and spinal implants, has recently been introduced into dentistry as …


In-Vitro Antimicrobial Activity, Demineralization Inhibition Potential, And Staining Effects Of Three Silver Fluoride Materials, Quiesly Torres Sep 2025

In-Vitro Antimicrobial Activity, Demineralization Inhibition Potential, And Staining Effects Of Three Silver Fluoride Materials, Quiesly Torres

All ETDs from UAB

Background: Dental caries is a worldwide preventable public health problem. It affects any individuals regardless of their gender, age, ethnicity, and socioeconomic status. Silver diamine fluoride (SDF) has been extensively used for preventing cavities, but it has side effects; therefore, some other biocompatible antimicrobial and remineralization-inducing alternative materials have been developed. Purpose: This study aims to assess the in vitro antimicrobial activity, demineralization inhibition potential, and staining effect of SDF, Nano Silver Fluoride (NSF), and silver fluoride + potassium iodide (SF/KI). Methods: Three silver diamine fluoride-based materials were tested: SDF 38% (Advantage Arrest®, Elevate Oral Care, USA), 1500 ppm NSF …


Randomized Control Trial Of A Novel Dental Gel As An Adjunct To Scaling And Root Planing In Subjects With Stage Ii & Iii Periodontitis, Efstratios Choreftakis Sep 2025

Randomized Control Trial Of A Novel Dental Gel As An Adjunct To Scaling And Root Planing In Subjects With Stage Ii & Iii Periodontitis, Efstratios Choreftakis

All ETDs from UAB

Scaling and root planing (ScRP) is the gold standard for non-surgical periodontal therapy, yet no dentifrice has been definitively shown to improve its outcomes. This randomized controlled trial evaluated the effectiveness of LivFresh Dental Gel as an adjunct to ScRP in patients with Stage II and III periodontitis. Twenty-one participants were assigned to either a test group using LivFresh Dental Gel or a control group using a standard sodium fluoride dentifrice. Clinical parameters—including probing depth (PD), clinical attachment level (CAL), gingival index (GI), plaque index (PI), and bleeding on probing (BOP)—were assessed at baseline, 30, 90, and 180 days. The …


Strength Of Self-Adhesive Resin Cements To Shortened Zirconia Crowns With And Without An Additional Coat Of Adhesive, Abraham John Sep 2025

Strength Of Self-Adhesive Resin Cements To Shortened Zirconia Crowns With And Without An Additional Coat Of Adhesive, Abraham John

All ETDs from UAB

Self-adhesive cements have gained popularity due to their ease of manipulation as they do not require a separate etch, primer, or bonding agent to bond to the tooth or crown surfaces. However, the use of an adhesive bonding agent with a self-adhesive resin cement has been claimed to improve its bond strength. The objective of this study is to compare the retention bond strength of 2 self-adhesive cements on to the tooth surface with and without the use of bonding agents with a known control. Materials and Methods: A total of 50 extracted non-carious second premolar teeth were collected. The …


Translucency And Stain Resistance Of A Light Cured Pontic Paste, Ahmed Abumustafa Jun 2025

Translucency And Stain Resistance Of A Light Cured Pontic Paste, Ahmed Abumustafa

All ETDs from UAB

Objectives: Light-cured pontic pastes can be applied to the internal aspect of clear retainer/aligner trays at sites of missing teeth. Ideally, the pontic tooth should appear visually opaque and resist staining. The aim of this study was to determine if the number of coats of the paste will affect its translucency and stain resistance. Materials and Methods: 12mm diameter discs of a biocryl clear retainer material (Clear Splint) (n=10) were punch-cut. Light-cure pontic paste (Perfect-A-Smile Pontic) was applied to one side of the biocryl discs in 1, 2, 3 or 4 coats (200-400g /coat). The paste was light cured between …


Antifungal Efficacy And Flexural Strength Of Silver Nanoparticles Reinforced Cad/Cam And Heat-Cured Pmma Polymers: An In-Vitro Study, Himanshi Aggarwal Jun 2025

Antifungal Efficacy And Flexural Strength Of Silver Nanoparticles Reinforced Cad/Cam And Heat-Cured Pmma Polymers: An In-Vitro Study, Himanshi Aggarwal

All ETDs from UAB

Background: PMMA denture base resins have high propensity for C. albicans growth. Previous studies have found that silver nanoparticle (SNP) addition into conventional PMMA resin improves fungal resistance without interfering with its flexural strength. Recently, CAD/CAM dentures have become highly popular, but they are also prone to fungal in-growth. However, little is known about the effect of addition of silver nanoparticles in CAD/CAM printed PMMA resin material. Objective: To compare the effect of the addition of cytocompatible concentration (1 µm/ml) of SNP on the antifungal efficacy and flexural strength of CAD/CAM printed and heat-cured PMMA polymers. Materials and methods: A …


Shear Bond Strength Of A Composite Resin To 3d-Printed Resins With Various Designed Surface Texture: An In-Vitro Study, Venkata Sruthi Surabathula Jan 2025

Shear Bond Strength Of A Composite Resin To 3d-Printed Resins With Various Designed Surface Texture: An In-Vitro Study, Venkata Sruthi Surabathula

All ETDs from UAB

Background: Three-dimensional (3D) printing has revolutionized dentistry by enabling the fabrication of interim restorations that protect prepared teeth and maintain aesthetics and function during prosthesis creation. These interim shells often require relining with composite resins for precise fitting and enhanced durability, relying on achieving a strong shear bond strength (SBS) between the 3D-printed shell and the composite resin. Surface roughness and texture are critical factors that create micro-mechanical retention sites, enhancing SBS by increasing surface area and improving adhesive properties through techniques like air-abrasion. Research into novel surface textures mimicking natural dentinal tubules aims to further boost bond strength, comparing …


Wear Resistance Of 3d Printed Occlusal Splint Materials, Pierpont Flanders Brown Jan 2025

Wear Resistance Of 3d Printed Occlusal Splint Materials, Pierpont Flanders Brown

All ETDs from UAB

Statement of problem: Three-dimensional (3D) printing offers an efficient method to produce occlusal devices (splints). However, their wear resistance is poorly understood. Purpose: The purpose of this in vitro study was to compare the wear resistance of flexible and rigid 3D printed occlusal splint materials to milled and conventionally processed occlusal splint materials. By establishing such a comparison, this study will help provide clinicians with greater knowledge of which materials and methods will provide their patients with the most wear resistant and durable occlusal splint possible. Material and methods: Identical sized blocks (n=8) of 3 flexible 3D printed materials (KeySplint …


Platal Expansion Using The Invisalign Palatal Expander "Ipe", Hassan Chihab Jan 2025

Platal Expansion Using The Invisalign Palatal Expander "Ipe", Hassan Chihab

All ETDs from UAB

Palatal expansion has been used in orthodontics to treat a narrow maxilla and to primarily correct posterior dental crossbites. In younger patients, palatal expansion can readily be achieved through opening of the mid-palatal suture, as it is not fused at that age. As the mid-palatal suture matures, expansion will gradually be difficult to achieve, and more dental expansion is obtained rather than skeletal. In addition, there is a tendency to get more dental tipping. Palatal expansion has been recommended not only to correct crossbites but also to improve breathing in patients with sleep disorders such as obstructive sleep apnea (OSA). …


Accuracy Of 3d Printed Models With Various Range Of Crowding Created By Dlp Printer With Different Designs Of Model Base, Chih Yen Liu Jan 2025

Accuracy Of 3d Printed Models With Various Range Of Crowding Created By Dlp Printer With Different Designs Of Model Base, Chih Yen Liu

All ETDs from UAB

Objective: Treatment planning and appliance fabrication depend on the accurate representation of dentition. Research on the accuracy of digital light processing (DLP) printed models with different base designs across various levels of dental crowding remains limited. This study aims to evaluate the fidelity of DLP printed models and the suitability of different base designs for representing dentition with mild, moderate, and severe crowding. Materials and Methods: The objective is to determine the optimal base designs for DLP-printed models to address varying degrees of dental crowding. A two-way ANOVA was used to compare root mean square (RMS) error across different base …


Effects Of Probiotic Lactobacilli On Candida Albicans: Implications For Early Childhood Caries, Leena Unnikrishnan Menon Sep 2024

Effects Of Probiotic Lactobacilli On Candida Albicans: Implications For Early Childhood Caries, Leena Unnikrishnan Menon

All ETDs from UAB

Purpose: Probiotic Lactobacillus species are shown to have beneficial effects against early childhood caries (ECC). On the other hand, the wide use of probiotic Lactobacillus spp. in dairy foods is believed to underline the global increase in ECC prevalence. Candida albicans has been frequently detected in children with ECC and has shown cariogenic potential in animal models of dental caries. The objective of this study was to determine the interactions between lactobacilli and C. albicans in growth competition, biofilm formation and acid production. Methods: Growth competition between C. albicans SC5314 and probiotic L. rhamnosus GG or caries-associated L. rhamnosus M72-26 …


Cross-Sectional Retrospective Study To Determine The Prevalence Of Periodontal Bone Loss As A Function Of Age In The Predoctoral Clinic Patient Population, Lincoln Nguyen Sep 2024

Cross-Sectional Retrospective Study To Determine The Prevalence Of Periodontal Bone Loss As A Function Of Age In The Predoctoral Clinic Patient Population, Lincoln Nguyen

All ETDs from UAB

Age has a significant effect on the body’s ability fight off disease, recover, and maintain collagen structures, and it has been observed that older adults have a higher prevalence of periodontal diseases. Studies have shown that age is a risk factor for alveolar bone loss. However, there is a lack of research done looking at if this is a linear progression or if there is a specific age that susceptibility increases. The aim of this study is to investigate (1) changes in radiographic bone loss in varying age groups in the University of Alabama patient population and (2) to evaluate …


A Five-Year Review Of State Dental Board Disciplinary Actions, Phorum Desai Sep 2024

A Five-Year Review Of State Dental Board Disciplinary Actions, Phorum Desai

All ETDs from UAB

Introduction: Ethical violations not only tarnish the reputation of dental professionals but also compromise the trust patients place in the dental field. A review of documented legal violations provides valuable insights into the common ethical transgressions and potential deficiencies in dental ethics education. This study aims to identify common violations reported by state dental boards and trends of violations over five years. Material and Methods: After a broad preliminary search, nine state dental boards with fully accessible records from January 2017 to December 2021 were selected for a thorough review: California, Iowa, Kentucky, Maine, Minnesota, Nebraska, New Jersey, South Dakota, …


Physical And Optical Properties Of Material Used For Injection Molding, Nadia Christine Farias Machado May 2024

Physical And Optical Properties Of Material Used For Injection Molding, Nadia Christine Farias Machado

All ETDs from UAB

Background: This project investigates the materials used in injection molding dental resin composites which involves injecting flowable composite into a clear mold. Understanding the physical and optical properties of both the resin composite and the clear mold material is crucial for successful clinical outcomes. For the clear mold material, its translucency, curing light transmission, and rigidity are vital factors. Correlations may be present between trans-lucency and curing light transmission. For the resin composite, comparing wear, hardness, translucency, radiopacity, shrinkage stress, flexural strength, and modulus will affect mate-rial performance. Finally, the depth of cure of the material will be dependent on …


Physical And Optical Properties Of Material Used For Injection Molding, Nadia Christine Farias Machado Jan 2024

Physical And Optical Properties Of Material Used For Injection Molding, Nadia Christine Farias Machado

All ETDs from UAB

Background: This project investigates the materials used in injection molding dental resin composites which involves injecting flowable composite into a clear mold. Understanding the physical and optical properties of both the resin composite and the clear mold material is crucial for successful clinical outcomes. For the clear mold material, its translucency, curing light transmission, and rigidity are vital factors. Correlations may be present between trans-lucency and curing light transmission. For the resin composite, comparing wear, hardness, translucency, radiopacity, shrinkage stress, flexural strength, and modulus will affect mate-rial performance. Finally, the depth of cure of the material will be dependent on …


Crown Fatigue Resistance And Enamel Wear Of 3d Printed Resin Compared To Lithium Disilicate, Pranit Vasant Bora Jan 2024

Crown Fatigue Resistance And Enamel Wear Of 3d Printed Resin Compared To Lithium Disilicate, Pranit Vasant Bora

All ETDs from UAB

Purpose: The purpose of this study is to compare the wear characteristics and fatigue resistance of two dental crown materials: SprintRay Ceramic Crown, a 3D-printed resin material, and IPS™ e.Max CAD, a lithium disilicate material. Methods: This study evaluates wear and fatigue characteristics of dental crowns made from Ceramic Crown (SprintRay) and IPS e.max CAD LT (Ivoclar). For fatigue testing, custom fatigue devices were utilized to subject the crowns to cyclic loading, simulating occlusal forces. The specimens underwent 100,000 cycle intervals until 1.5 million cycles at a load of 40N of fatigue loading, with inspections conducted for signs of debonding, …


Effect Bioactive Material Have On Tooth Demineralization, Taillk Gomes Jan 2024

Effect Bioactive Material Have On Tooth Demineralization, Taillk Gomes

All ETDs from UAB

The objective of this in vitro study is to compare the inhibition of demineralization of root dentin caused by the presence of different restorative materials using Vickers Hardness (HV) test (microhardness) test and polarized light microscopy (PLM).


Randomized Control Trial Of A Novel Dental Gel As An Adjunct To Scaling And Root Planing In Subjects With Stage Ii & Iii Periodontitis, Sarah Pham Jan 2023

Randomized Control Trial Of A Novel Dental Gel As An Adjunct To Scaling And Root Planing In Subjects With Stage Ii & Iii Periodontitis, Sarah Pham

All ETDs from UAB

The current standard of care for treating chronic periodontitis is scaling and root planing (ScRP) followed by supportive periodontal therapy (SPT) (Cobb et al., 2021; Ramfjord et al., 1987). The goal of ScRP is to eliminate supra- and subgingival bacterial deposits and to reduce periodontal pathogens, inflammation, and pocket depths (Greenstein, 2000). Although ScRP has been shown to significantly improve baseline clinical parameters, moderate to advanced cases may require additional surgical therapy which many patients resist (Stambaugh, 1981; Becker et al., 2001). Currently, no dentifrice used adjunctively has been proven to increase the therapeutic effects of scaling and root planing. …


Diagnostic Outcomes Of Digital Images For Comprehensive Examination In Pediatric Dentistry: An Intraexaminer Agreement Assessment, Maria Fernanda Montoya Jan 2023

Diagnostic Outcomes Of Digital Images For Comprehensive Examination In Pediatric Dentistry: An Intraexaminer Agreement Assessment, Maria Fernanda Montoya

All ETDs from UAB

Purpose: To Assess intra-examiner diagnoses obtained via traditional oral clinical examination (TCE) versus digital oral examination (DOE) completed from digital video images of pediatric patients. Methods: Fifty pediatric patients 5 to 10 years of age, who attend the Pediatric Dentistry Clinic at the University of Alabama at Birmingham (UAB) for initial consultations or regular visits were included in this study. Individual oral comprehensive examinations were done by five second-year pediatric dentistry residents. A trained dental hygienist recorded a full mouth intraoral video for each patient via MouthWatch intraoral camera and stored using existing Information and Communication Technology (ICT) infrastructure. After …


Comparing The Efficiency Of Molar Protraction Using Herbsts And Temporary Anchorage Devices, Ishita Zem Taneja Jan 2023

Comparing The Efficiency Of Molar Protraction Using Herbsts And Temporary Anchorage Devices, Ishita Zem Taneja

All ETDs from UAB

Objective: The purpose of this study is twofold. First, to assess the utilization of the Herbst device in mandibular molar protraction. Second, to compare the effectiveness of the protraction Herbst and TADs in patients with congenitally missing mandibular second premolars. Methods: This project was designed as a retrospective study. Orthodontic patients with unilateral or bilateral congenitally missing mandibular premolars, who received the protraction Herbst appliance or TADs as part of their treatment were included in the study. We excluded patients treated with maxillary counterbalancing extractions. Our final patient sample included a total of 33 patients (22 females and 11 males). …


Effectiveness Of The Invisalign System For Deep Bite Correction, Jerry D. Spillers Jan 2023

Effectiveness Of The Invisalign System For Deep Bite Correction, Jerry D. Spillers

All ETDs from UAB

Objective: To assess the dental and skeletal changes resulting from correction of a deep bite using Invisalign (Align Technology, Santa Clara, CA, USA).Methods: This is a retrospective case series study which analyzed pre and post treatment cephalograms for 37 adult deep bite patients. Each patient was treated by one, experi-enced clinician using the same treatment protocols. Nineteen variables, ten linear and nine angular. The Wilcoxon analysis was used to determine if there was a significant dif-ference in pre and post treatment variables. Results: Statistically significant differences (P<0.05) occurred for 14 of 19 variables. These include a decrease in Overjet (-0.97 mm), decrease in overbite (-4.07 mm), extru-sion of the upper first molar (0.47 mm), intrusion of the upper incisor (-0.67mm), extru-sion of the lower second molar (1.01 mm), lower first molar (1.20 mm), lower second premolar (1.70 mm), and lower first premolar (1.74 mm), intrusion of the lower incisor (-1.88 mm), proclination of lower incisor, (4.09 ̊), and increase in SN-MP (0.54 mm). A decrease in anterior occlusal plane (AOP) was also statistically significant. Conclusions: Invisalign is an effective treatment modality for correcting dental deep bites through posterior extrusion and anterior intrusion. Minimal skeletal changes are seen when correcting deep bites with Invisalign.