• Failure rates for stainless steel versus titanium alloy infrazygomatic crest bone screws: A single-center, randomized double-blind clinical trial 

  Chang, Chris; Lin, Joshua S.; Roberts, W. Eugene (The Angle Society, 2019-01)

  Objectives: To compare failure rates for stainless steel (SS) and titanium alloy (TiA) bone screws (BSs) placed in the infrazygomatic crest (IZC). Materials and Methods: A total of 386 consecutive patients (76 male, 310 ...
• Severe unilateral scissors-bite with a constricted mandibular arch: Bite turbos and extra-alveolar bone screws in the infrazygomatic crests and mandibular buccal shelf 

  Lee, Shuang-An; Chang, Chris C. H.; Roberts, W. Eugene (Elsevier, 2018-10)

  A 33-year-old woman had a chief complaint of difficulty chewing, caused by a constricted mandibular arch and a unilateral full buccal crossbite (scissors-bite or Brodie bite). She requested minimally invasive treatment but ...
• Maxillary expansion in an animal model with light, continuous force 

  Utreja, Achint; Bain, Carol; Turek, Brett; Holland, Robert; AlRasheed, Rawan; Sorkhdini, Parand; Roberts, W. Eugene (E.H Angle Education and Research Foundation, 2018)

  Objectives: Maxillary constriction is routinely addressed with rapid maxillary expansion (RME). However, the heavy forces delivered by most RME appliances to expand the palate may lead to deleterious effects on the teeth ...
• The combined effects of salivas and occlusal indicators on occlusal contact forces 

  Beninati, Christopher J.; Katona, Thomas R. (Wiley, 2019)

  Background Some occlusal detection products are designed for use on dry teeth, but this is not always achieved. Others are suited for dry and wet applications. Objective The objective of this study is to assess the ...
• Interdisciplinary treatment for a compensated Class II partially edentulous malocclusion: Orthodontic creation of a posterior implant site 

  Chiu, Grace; Chang, Chris; Roberts, W. Eugene (Elsevier, 2018)

  A 36-year-old woman with good periodontal health sought treatment for a compensated Class II partially edentulous malocclusion associated with a steep mandibular plane (SN-MP, 45°), 9 missing teeth, a 3-mm midline discrepancy, ...
• A comprehensive analysis of normal variation and disease-causing mutations in the human DSPP gene 

  McKnight, Dianalee A.; Hart, P. Suzanne; Hart, Thomas C.; Hartsfield, James K.; Wilson, Anne; Wright, J. Timothy; Fisher, Larry W. (Wiley, 2008-12)

  Within nine dentin dysplasia (DD) (type II) and dentinogenesis imperfecta (type II and III) patient/families, seven have 1 of 4 net -1 deletions within the approximately 2-kb coding repeat domain of the DSPP gene while the ...
• Laser-treated stainless steel mini-screw implants: 3D surface roughness, bone-implant contact, and fracture resistance analysis 

  Kang, He-Kyong; Chu, Tien-Min; Dechow, Paul; Stewart, Kelton; Kyung, Hee-Moon; Liu, Sean Shih-Yao (Oxford University Press, 2016-04)

  BACKGROUND/OBJECTIVES: This study investigated the biomechanical properties and bone-implant intersurface response of machined and laser surface-treated stainless steel (SS) mini-screw implants (MSIs). MATERIAL AND METHODS: ...
• The effect of corticision on root resorption with heavy and light forces 

  Murphy, Christopher; Zalajzic, Zana; Chandhoke, Taranpreet; Utreja, Achint; Nanda, Ravindra; Uribe, Flavio (2016-01)

  Objective:  To investigate the association between corticision and different force magnitudes with the amount of root resorption. Methods:  Forty-four male Wistar rats (7 week old) were evaluated after an orthodontic ...
• Nasal Airway and Septal Variation in Unilateral and Bilateral Cleft Lip and Palate 

  Starbuck, John M.; Friel, Michael T.; Ghoneima, Ahmed; Flores, Roberto L.; Tholpady, Sunil; Kula, Katherine (Wiley, 2014-10)

  Cleft lip and palate (CLP) affects the dentoalveolar and nasolabial facial regions. Internal and external nasal dysmorphology may persist in individuals born with CLP despite surgical interventions. 7–18 year old individuals ...
• Does the presence of an occlusal indicator product affect the contact forces between full dentitions? 

  Mitchem, Jesse A.; Katona, Thomas R.; Moser, Elizabeth A. S. (Wiley, 2017)

  Studies have explored occlusal marking interpretation, repeatability and accuracy. But, when an occlusion detection product is interposed between teeth, direct tooth–tooth occlusal contact relationships are replaced by ...
• Canine-Lateral Incisor Transposition: Controlling Root Resorption with a Bone- Anchored T-Loop Retraction 

  Hsu, Yu Lin; Chang, Chris H.; Roberts, W. Eugene (Elsevier, 2016-12)

  Introduction: A 12-yr old female presented with a Class II division 1 malocclusion, complicated by a complete transposition of the maxillary left canine, into the position normally occupied by the left lateral incisor. ...
• The association of malocclusion and trumpet performance 

  Kula, Katherine; Cilingir, H. Zeynep; Eckert, George; Dagg, Jack; Ghoniema, Ahmed (2015)

  Objective:  To determine whether trumpet performance skills are associated with malocclusion. Materials and Methods:  Following institutional review board approval, 70 university trumpet students (54 male, 16 female; ...
• Cell and matrix response of temporomandibular cartilage to mechanical loading 

  Utreja, Achint; Dyment, Nathaniel A.; Yadav, Sumit; Villa, Max M.; Li, Yingcui; Jiang, Xi; Nanda, Ravindra; Rowe, David W. (Elsevier, 2016-02)

  OBJECTIVES: The generation of transgenic mice expressing green fluorescent proteins (GFPs) has greatly aided our understanding of the development of connective tissues such as bone and cartilage. Perturbation of a ...
• Pathways in external apical root resorption associated with orthodontia 

  Hartsfield Jr., J.K. (Wiley, 2009-08)

  To review studies investigating if genetic factors play a role in external apical root resorption (EARR) during orthodontic treatment. Heritability estimation in human sib-pairs, comparison of multiple inbred mouse strains, ...
• Effects of rapid maxillary expansion on the cranial and circummaxillary sutures 

  Ghoneima, Ahmed; Abdel-Fattah, Ezzat; Hartsfield, James; El-Bedwehi, Ashraf; Kamel, Ayman; Kula, Katherine (Elsevier, 2011-10)

  INTRODUCTION: The aim of this study was to determine whether the orthopedic forces of rapid maxillary expansion cause significant quantitative changes in the cranial and the circummaxillary sutures. METHODS: Twenty ...
• Three-Dimensional Computed Tomography Analysis of Airway Volume Changes Between Open and Closed Jaw Positions 

  Glupker, Leslie; Kula, Katherine; Parks, Edwin; Babler, William; Stewart, Kelton; Ghoniema, Ahmed (Elsevier, 2015-04)

  Introduction Airway dimensions are closely linked to the bone and soft-tissue craniofacial anatomy. Reduction of the airway is seen with airway disorders and can impair function. The purpose of this retrospective study ...
• Diagnosis and Conservative Treatment of Skeletal Class III Malocclusion with Anterior Crossbite and Asymmetric Maxillary Crowding 

  Tseng, Linda L. Y.; Chang, Chris; Roberts, W. Eugene (Elsevier, 2016-04)

  A 28-year-9-month male presented for orthodontic consultation for skeletal Class III malocclusion (ANB -30) with a modest asymmetric Class II/III molar relationship, complicated by an anterior crossbite, deep bite, and ...
• Hounsfield unit change in root and alveolar bone during canine retraction 

  Jiang, Feifei; Liu, Sean S.-Y.; Xia, Zeyang; Li, Shuning; Chen, Jie; Kula, Katherine S.; Eckert, George (Elsevier, 2015-04)

  INTRODUCTION: The objective of this study was to determine the Hounsfield unit (HU) changes in the alveolar bone and root surfaces during controlled canine retractions. METHODS: Eighteen maxillary canine retraction patients ...
• Finite Element Analysis of a Statically Determinate System to Rotate the Occlusal Plane for Correction of Skeletal Class III Openbite Malocclusion 

  Roberts, W. Eugene; Viecilli, Rodrigo F.; Chang, Chris; Katona, Thomas R.; Paydar, Nasser H. (Elsevier, 2015-12)

  Introduction In the absence of adequate animal or in-vitro models, the biomechanics of human malocclusion must be studied indirectly. Finite element analysis (FEA) is emerging as a clinical technology to assist in ...
• An analytical approach to 3D orthodontic load systems 

  Katona, Thomas R.; Isikbay, Serkis C.; Chen, Jie (The Angle Orthodontist, 2014-09)

  OBJECTIVE: To present and demonstrate a pseudo three-dimensional (3D) analytical approach for the characterization of orthodontic load (force and moment) systems. MATERIALS AND METHODS: Previously measured 3D load systems ...

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