Medicine and Health Sciences Commons^™

Auriculotemporal Nerve Block For Tmj: A Systematic Review, Hasan Zia, Usmaan Al-Shehab, Ahmed Gawash, Anthony Dipalma, Dale Johnson, Musa Dolley, David F. Lo, Ryan St. John, Zain Hassam, Don D. Shamilov

Rowan-Virtua Research Day

The purpose of this systematic review is to evaluate auriculotemporal nerve blocks for temporomandibular joint (TMJ) disorder management. 583 articles reviewed from five databases, selected four studies for pooled analysis on visual analog scale (VAS) and maximum mouth opening (MMO) outcomes. Pooled analysis showed significant improvement in VAS (-2.27, p < 0.001) and MMO (0.94, p = 0.03) post-auriculotemporal nerve blocks for TMJ disorder. Auriculotemporal nerve blocks demonstrate potential effectiveness in TMJ disorder treatment, warranting further research on long-term effects and side effects.

Evaluation Of Gender Difference At Orthodontic Miniscrew Placement Sites In The Mandible: A Cbct Study, Ming-Wei Wei, Yu-Chuan Tseng, Hong-Po Chang, Yi-Hsin Yang

Taiwanese Journal of Orthodontics

Purpose: the purpose of this study is to evaluate mandible bone density and gender difference through three-dimensional images. The Images was captured by cone-beam computer tomography (CBCT) and transfer into DICOM format for further examination. Material and method: CBCT images were obtained from 36 males and 34 females aged from 18 to 40 years. Mandible bone density was measured in 4 sites bilaterally. Inter-gender and intra-class comparison were made to distinguish the difference of acquired data. Result: Bone density measurement of females showed greater bone density at almost all sites but only showing significant difference in left retromolar area (p=0.0067). …

Evaluation Of The Bone Thickness Of Mandibular Molars Using Cone Beam Computed Tomography, Deniz Yanık, Ahmet Mert Nalbantoglu

Journal of Dentistry Indonesia

Objective: To investigate buccal and lingual bone thicknesses and fenestration rate of mandibular first and second molars using cone-beam computed tomography (CBCT).

Methods: A total of CBCT images of 41 patients were selected and overall 120 mandibular molars were investigated. The buccal and lingual alveolar bone widths were measured at apex of the roots. The prevalence of fenestration in mandibular molars was recorded. Statistical analyses were performed.

Results: The buccal bone widths of mesial root of second molars were significantly lower than the lingual (p<0.05). The lingual bone widths of mesial and distal root of second molars were lower than the buccal (p<0.05). The lowest thickness of buccal and lingual bone was observed in mesial root of first molar and distal root of second molar. The prevalence of fenestration in mandibular first and second molars was 5% and 10%.

Conclusion: The buccal bone widths were lower at the first molar than the second molar. …

Analysis Of Pretreatment Factors Associated With Stability In Early Class Iii Treatment, Yasuko Inoue, Toru Deguchi, James K. Hartsfield Jr., Wakako Tome, Noriyuki Kitai

Oral Health Science Faculty Publications

BACKGROUND: The purpose of this study was to identify pretreatment factors associated with the stability of early class III treatment, since most orthodontists start the treatment with their uncertain hypotheses and/or predictions. Subjects consisted of 75 patients with a class III skeletal relationship (ANB < 2° and overjet < 0 mm) who had been consecutively treated with rapid maxillary expansion and facemask and followed until their second phase treatment. The patients were divided into two groups according to whether they showed relapse in follow-up. The stable group maintained their positive overjet (n = 55), and the unstable group experienced relapse with a zero or negative overjet (n = 20). Two general, three dental, and 13 cephalometric pretreatment factors were investigated to determine which factors were associated with stability.

RESULTS: Sex, pretreatment age, and anteroposterior functional shift, which were hypothesized as associated factors, were not related to …

The Role Of Gsk3 Alpha And Beta In Embryonic Craniofacial Development, Harman Jassar

Electronic Thesis and Dissertation Repository

Background: The GSK-3 genes (Gsk3a and Gsk3b) have been known to affect many cellular processes and signaling pathways some of which are implicated in the growth and development of the craniofacial skeleton.

Aim: The purpose of this study was to assess the effect of chondrocyte-specific deletion of Gsk3a and Gsk3b on the size of the mandible and craniofacial skeleton in embryonic mice.

Materials & Methods: Mice were bred to generate cartilage-specific Gsk3a and Gsk3b KO mice. On embryonic day 18.5 (E18.5) the offspring were gathered by caesarian section. Whole mount skeletal staining was completed on the specimens using …

Medication-Related Osteonecrosis Of The Mandible, Galal Omami

Oral Health Practice Faculty Publications

No abstract provided.

Craniofacial Analysis May Indicate Co-Occurrence Of Skeletal Malocclusions And Associated Risks In Development Of Cleft Lip And Palate, Denise K. Liberton, Payal Verma, Konstantinia Almpani, Peter W. Fung, Rashmi Mishra, Snehlata Oberoi, Figen Ç. Şenel, James K. Mah, John Huang, Bonnie L. Padwa, Janice S. Lee

Dental Medicine Faculty Publications

Non-syndromic orofacial clefts encompass a range of morphological changes affecting the oral cavity and the craniofacial skeleton, of which the genetic and epigenetic etiologic factors remain largely unknown. The objective of this study is to explore the contribution of underlying dentofacial deformities (also known as skeletal malocclusions) in the craniofacial morphology of non-syndromic cleft lip and palate patients (nsCLP). For that purpose, geometric morphometric analysis was performed using full skull cone beam computed tomography (CBCT) images of patients with nsCLP (n = 30), normocephalic controls (n = 60), as well as to sex- and ethnicity- matched patients with an equivalent …

Functionalized Scaffold And Barrier Membrane With Anti-Bmp-2 Monoclonal Antibodies For Alveolar Ridge Preservation In A Canine Model, Seiko Min, Taewan Kim, Oksu Kim, Carames Goncalo, Tadahiko Utsunomiya, Takashi Matsumoto, Kayo Kuyama, Nikola Angelov

Journal Articles

INTRODUCTION: The aim of this study was to investigate the ability of anti-bone morphogenetic protein 2 monoclonal antibody (anti-BMP-2 mAb) to functionalize scaffolds to mediate bone regeneration in a canine model.

MATERIALS AND METHODS: The mandibular right premolar 4 (PM4) was extracted in eight beagle dogs and grafted with anti-BMP-2 mAb+anorganic bovine bone mineral with 10% collagen (ABBM-C) and porcine bilayer native collagen membrane (CM). The ABBM-C and CM were functionalized with either anti-BMP-2 mAb (test group) or an isotype matched control mAb (control group). Animals were euthanized at 12 weeks for radiographic, histologic, and histomorphometric analyses. Outcomes were compared …

Reconstruction Of Marginal Mandibular Defects Utilizing Bone Marrow Aspirate Concentrate (Bmac) From The Anterior Iliac Crest: A Less Morbid Osteogenic Option, Shachika Khanna, Bds, Dmd, Rafael Gavilanes, Dmd, Robert Diecidue, Dmd, Md, Mba, Msph, Daniel Taub, Dds, Md, Alyssa Flashburg, Dmd

Department of Oral and Maxillofacial Surgery Posters

The aim of this case series, is to describe our surgical technique for reconstructing benign mandibular neoplasms using BMAC – a less invasive approach than traditional iliac crest bone graft harvest.

BMAC was used in combination with mineralized freeze-dried allograft, platelet rich plasma (PRP) & bone morphogenic protein (rhBMP-2) to reconstruct the hard tissue lost secondary to the ablative tumor resection.

• 10 patients included in the retrospective case series were treated between 2014 and 2017 by 3 surgeons.
• Mean age - 44 years (range - 19 to 77 years). BMAC was obtained from the anterior iliac crest (AIC).
• When appropriate, …

Design Of Parallel Robot For Dental Articulation And Its Optimization, Abulimiti Delimulati

Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research

A dental articulator is a mechanical device used to simulate the relative position and motion between the upper and lower jaw when constructing and testing dental prostheses. Typically, it can be adjusted to approximate patient-specific jaw kinematics in order to analogue the static relationship and specific motions of a patient’s mandible to maxilla. However, the use of dental articulators is essentially a trial-and-error method in order to fine-tune fit and function of a dental prosthesis. Some of the most advanced current dental articulators can reproduce the position and the motion passively; furthermore, dentists need special training for measuring patients’ maxillofacial …

Effect Of Voxel Size On The Accuracy Of 3d Reconstructions With Cone Beam Ct., Delphine Maret, Norbert Telmon, Ove A. Peters, B. Lepage, J. Treil, J. M. Inglèse, A. Peyre, Jean-Luc Kahn, Michel Sixou

Ove Peters

OBJECTIVES: The various types of cone beam CT (CBCT) differ in several technical characteristics, notably their spatial resolution, which is defined by the acquisition voxel size. However, data are still lacking on the effects of voxel size on the metric accuracy of three-dimensional (3D) reconstructions. This study was designed to assess the effect of isotropic voxel size on the 3D reconstruction accuracy and reproducibility of CBCT data. METHODS: The study sample comprised 70 teeth (from the Institut d'Anatomie Normale, Strasbourg, France). The teeth were scanned with a KODAK 9500 3D® CBCT (Carestream Health, Inc., Marne-la-Vallée, France), which has two voxel …

Cbct Evaluation Of Adolescent Mandibular Morphology In Different Classifications Of Facial Type, Annie Hsu

UNLV Theses, Dissertations, Professional Papers, and Capstones

The goal of this study is to use the improved imaging capability of cone-beam computerized tomography (CBCT) to investigate the relationship between vertical facial patterns and mandibular tooth-alveolar morphology in the adolescent population. Pre-treatment orthodontic records were obtained from the UNLV School of Dental Medicine archival dental records. One hundred and seventy three patients (72 males, 101 females) between the ages of 12 and 18 years were included in this study. Among these patients, 61 displayed the vertical growth pattern, 30 displayed the horizontal growth pattern, and 82 displayed the average growth pattern. The samples were categorized into 4 age …

Analysis Of Stresses In Mandible And Skull Under Angular Impact, Dr. Shobha E S, Dr. Suresh Nagesh, Dr. H P. Raghuveer, Mr. Vinay K. S

Innovative Research Publications IRP India

Finite element analysis has gained a significant attention in the field of biomechanics. The versatility of finite element analysis is the major reason behind its implementation and adoption has made the study of biomechanics much easier and simpler. FEA, as a tool has helped in analyzing the various organs in human body in different loading conditions. Be it Orthopedic,Maxillofacial fractures,Orthodontics, Prosthodontics, hemodynamics, it is finding its applications in all areas of biomechanics. In this paper, one such study has been carried out to understand the behavior of skull and mandible under inclined impacts. Skull is one of the highly complicated …

Desmoplastic Fibroma Of The Mandible: A Series Of Three Cases And Review Of Literature, T. R. Woods, D. M. Cohen, M. N. Islam, Yeshwant B. Rawal, I. Bhattacharyya

School of Dentistry Faculty Research and Publications

The desmoplastic fibroma (DF) is a rare, fibroblastic lesion of bone that histologically resembles the desmoid tumor of soft tissue. Although classified as benign, it frequently demonstrates aggressive behavior, often causing tooth mobility, extensive bone destruction, and has a moderate to high recurrence rate. We present three cases of DF in the mandible: the first in a 13 year old female involving the mandibular body in the region of teeth #s 27–#28, the second in a 57 year old female with a lesion apical to tooth #30, and the third in a 20-year-old female involving the left posterior mandible. Clinical, …

Effect Of Voxel Size On The Accuracy Of 3d Reconstructions With Cone Beam Ct., Delphine Maret, Norbert Telmon, Ove A. Peters, B. Lepage, J. Treil, J. M. Inglèse, A. Peyre, Jean-Luc Kahn, Michel Sixou

All Dugoni School of Dentistry Faculty Articles

OBJECTIVES: The various types of cone beam CT (CBCT) differ in several technical characteristics, notably their spatial resolution, which is defined by the acquisition voxel size. However, data are still lacking on the effects of voxel size on the metric accuracy of three-dimensional (3D) reconstructions. This study was designed to assess the effect of isotropic voxel size on the 3D reconstruction accuracy and reproducibility of CBCT data.

METHODS: The study sample comprised 70 teeth (from the Institut d'Anatomie Normale, Strasbourg, France). The teeth were scanned with a KODAK 9500 3D® CBCT (Carestream Health, Inc., Marne-la-Vallée, France), which has two voxel …

Immediate Versus Delayed Loading Of Two Implants Supporting A Locator Retained Mandibular Overdenture. A Randomized Controlled Study., Sejal R. Thacker

Master's Theses

The aim of this study was to evaluate immediate versus delayed loading of two implants, six months post-surgery, supporting a locator retained mandibular overdenture. The objective was to evaluate implant bone remodelling using radiographic bone level changes (RBL) as the variable, from baseline to six months, between the test and the control groups. The secondary objectives included (1) evaluation of implant survival, (2) nature and frequency of surgical and prosthetic complications, and (3) correlation of implant length and insertion torque on RBL.

Eligible patients were randomized into test (immediate loading) and control group (delayed loading). Five patients were allocated to …

Collagenous Myofibroblastic Tumor Of The Mandible: Case Report Of A Unique Locally Aggressive Neoplasm Journal Head And Neck Pathology, Jason W. Nash, Amy C. Hessel, Nadarajah Vigneswaran, Adel K. El-Naggar

Journal Articles

We report a locally aggressive collagenous myofibroblastic neoplasm of the mandible in an 18-year-old male. Clinically, the lesion presented with rapid growth and irregular mandibular bone destruction. Grossly, the tumor was 10 cm in greatest dimension, light-tan, firm, and involving the posterior one-thirds of the body and inferior half of the left mandibular ramus. Histologically, the lesion was composed of a loose spindle cell proliferation interspersed with periodic dense bands of collagen. The spindle cells reacted positively to smooth muscle actin, calponin, and focally to desmin and were negative for S-100, pan-cytokeratin, CD99, CD34 and caldesmon, supporting myofibroblastic derivation. At …

Myositis Ossificans Circumscripta Of The Buccinator Muscle: First Report Of A Rare Complication Of Mandibular Third Molar Extraction, Raymond L Wiggins, David Thurber, Kenneth Abramovitch, Jerry Bouquot, Nadarajah Vigneswaran

Journal Articles

No abstract provided.

Gnathic Osteoblastoma: Clinicopathologic Review Of Seven Cases With Long-Term Follow-Up, Yeshwant B. Rawal, Francesca Angiero, Carl M. Allen, John R. Kalmar, Parish P. Sedghizadeh, Andrew M. Steinhilber

School of Dentistry Faculty Research and Publications

The clinical, radiographic and histopathologic features of seven cases of osteoblastoma of the jaw bones were analyzed. The mandible was involved in six cases and a periosteal presentation of the tumor was noted in three cases. Six tumors were symptomatic with pain being the common presentation. The radiographic appearance of the intraosseous tumors varied from well-defined radiolucencies to poorly-defined mixed lesions. A small periosteal tumor was undetectable radiographically. Histopathologically, the tumors exhibited variation in woven bone formation, osteoblastic rimming, lesional maturation as well as interaction of the tumor with surrounding host tissue. Intraosseous tumors were managed with aggressive surgical curettage …

ลักษณะของขากรรไกรล่างภายหลังการบำบัดด้วยเครื่องมือโพรแทรคชัน เฮดเกียร์ ในผู้ป่วยโครงสร้างใบหน้าผิดปกติประเภทที่ 3, สมรตรี วิถีพร

Chulalongkorn University Dental Journal

หลักการพื้นฐานในการบำบัดผู้ป่วยโครงสร้างใบหน้าผิดปกติประเภทที่ 3 ด้วยวิธีการทางทันตกรรมจัดฟัน คือ ควบคุมการเจริญเติบโตของขากรรไกรบนและล่างให้มีขนาดและทิศทางที่เหมาะสม เพื่อให้ความสัมพันธ์ ของขากรรไกรทั้งสองปกติ วัตถุประสงค์ของการวิจัย เพื่อประเมินขนาดและทิศทางการเจริญเติบโตของขากรรไกรล่างภายหลังการบำบัดด้วยเครื่องมือโพรแทรคชัน เฮดเกียร์ กลุ่มตัวอย่างประกอบด้วยผู้ป่วยโครงสร้างใบหน้าผิดปกติประเภทที่ 3 15 ราย (ชาย 6 ราย หญิง 9 ราย) อายุเฉลี่ย 10 ปี 6 เดือน ผู้ป่วยทั้งหมดมีครอสไบท์ฟันหน้า ขากรรไกรบนหลุบ ขากรรไกรล่างอื่น ได้ รับการบำบัดด้วยเครื่องมือจัดฟันชนิดติดแน่น และเครื่องมือโพรแทรคชัน เฮดเกียร์ ระบบแรง 400 กรัม เพื่อดึง ขากรรไกรบนมาทางด้านหน้า และแรง 1,000 กรัมเพื่อรั้งขากรรไกรล่างไปทางด้านหลัง เป็นเวลา 12-14 ชั่วโมงต่อวัน การติดตามผลในระยะยาว แสดงให้เห็นว่า การสบฟันและโครงสร้างใบหน้าที่ดีขึ้นนั้นเป็นผลเนื่องจาก การเจริญเติบโตและการบำบัด โดยขากรรไกรล่างมีการเจริญเติบโตในแนวดิ่งและหมุนตามเข็มนาฬิกาเพิ่มขึ้นอย่างมีนัยสำคัญ โดยปราศจากการคืนกลับภายหลังติดตามผลเป็นเวลา 2 ปี