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https://www.readbyqxmd.com/read/27893557/changes-in-upper-airway-volume-following-orthognathic-surgery
#1
Lillian Marcussen, Kasper Stokbro, Esben Aagaard, Peter Torkov, Torben Thygesen
Reduced volume of the internal skeletal dimensions of the face is 1 of the main causes of obstructive sleep apnea, and attention to patients' airways is necessary when planning orthognathic treatment. This study aims to describe changes in upper airway volume following virtually planned orthognathic surgery.A retrospective pilot study was designed with 30 randomly selected patients (10 men and 20 women, aged 23.1 ± 6.8 years, molar-relations: 15 neutral, 8 distal, and 7 mesial). Cone-beam computed tomography scans were performed before surgery and 1 week following surgery...
November 23, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27881315/cad-cam-implant-supported-fixed-complete-dental-prosthesis-with-titanium-milled-molars-a-clinical-report
#2
Abdulaziz AlHelal, Bader AlBader, Mathew T Kattadiyil, Antoanela Garbacea, Periklis Proussaefs
Implant-supported fixed complete dental prostheses have been associated with a high implant success rate in long-term studies. However, they have also been associated with a high frequency of prosthetic complications. The most frequent and primary prosthetic complication has been the fracture or wear of the occlusal surface of acrylic resin teeth that are typically attached to a metal framework. The design of the framework in this clinical report involved the incorporation of metal occlusal surfaces for the posterior first molars to the framework...
October 27, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27872552/preserving-esthetics-occlusion-and-occlusal-vertical-dimension-in-a-patient-with-fixed-prostheses-seeking-dental-implant-treatment
#3
Abdulaziz Al Baker, Syed Rashid Habib, Mohammad D Al Amri
The preservation of esthetics and occlusal vertical dimension is critical in patients with existing full-arch tooth-retained fixed prostheses. This clinical report describes the provision of a maxillary immediate complete denture in a patient with a maxillary full-arch fixed dental prosthesis over nonviable teeth. The existing fixed dental prosthesis was used in the fabrication of the maxillary immediate complete denture to preserve esthetics. The technique involved recording and preservation of the occlusal vertical dimension and occlusion of the existing prosthesis...
October 2016: Saudi Dental Journal
https://www.readbyqxmd.com/read/27871706/retrospective-study-of-maxillary-sinus-dimensions-and-pneumatization-in-adult-patients-with-an%C3%A2-anterior-open-bite
#4
Jesung Ryu, Sung-Hwan Choi, Jung-Yul Cha, Kee-Joon Lee, Chung-Ju Hwang
INTRODUCTION: The aim of this study was to evaluate differences in the maxillary sinus floor levels between adults with an anterior open bite and those without. METHODS: This retrospective study included 30 subjects: 15 adults with an anterior open bite (mean age, 21.5 ± 4.3 years) and 15 control subjects with normal occlusion (mean age, 21.7 ± 3.1 years). Cone-beam computed tomography and lateral cephalograms were analyzed before treatment. RESULTS: The open-bite group exhibited a significantly greater maxillary posterior alveolar height (P <0...
November 2016: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/27871703/change-in-the-vertical-dimension-of-class-ii-division-1-patients-after-use-of-cervical-or-high-pull-headgear
#5
Erin Dobbins Zervas, Maria Therese S Galang-Boquiren, Ales Obrez, Maria Grace Costa Viana, Nelson Oppermann, Flavio Sanchez, Enrique Garcia Romero, Budi Kusnoto
INTRODUCTION: The goals of this study were to compare the effects that cervical and high-pull headgear have on the vertical dimensions in Class II Division 1 patients during phase 1 treatment and to compare these effects with untreated predicted growth for the sample population. METHODS: Pretreatment and posttreatment cephalometric radiographs of children who had undergone Class II Division 1 correction with cervical (n = 22) or high-pull headgear (n = 19) were analyzed for the measurements that describe the changes in the vertical component of growth and mandibular position...
November 2016: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/27866699/recording-the-trajectory-of-mouth-opening-and-closing-for-the-fabrication-of-an-occlusal-splint
#6
Jong-Eun Kim, Joo Hyun Kwon, Jee-Hwan Kim, June-Sung Shim
Various attempts have been made to transfer the transverse hinge axis and mandibular movement pattern to the mechanical articulator and to fabricate dental prostheses with the fewest errors. However, the occlusal adjustment of a dental prosthesis is always necessary to ensure a precise intraoral fit even when the facebow transfer technique is used in the cast mounting procedure. This is because the true hinge axis is not obtained when the facebow is applied to a patient who exhibits a variable mandible movement pattern rather than a single rotational axis...
November 17, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27795647/erosive-effects-of-pediatric-liquid-medicinal-syrups-on-primary-enamel-an-in-vitro-comparative-study
#7
Parimala Kulkarni, Ayushi Anand, Arpana Bansal, Ankur Jain, Utkarsh Tiwari, Suchi Agrawal
CONTEXT: The use of liquid medicinal syrups in childhood is high owing to the reasons that children suffer from illness quite often. The acidic component in the formulations may cause erosion to the dental tissues. AIMS: The aim of this study is to evaluate the erosive potential of pediatric liquid medicinal syrups on the deciduous teeth. SUBJECTS AND METHODS: A total of sixty extracted/exfoliated noncarious deciduous molars were used. Four medical syrups were used (viz...
September 2016: Indian Journal of Dentistry
https://www.readbyqxmd.com/read/27747645/a-piezo-surgery-with-corticotomies-and-implant-placement-as-part-of-a-multidisciplinary-approach-to-treat-malocclusion-disorder-in-an-adult-patient-clinical-report
#8
Federico Gelpi, Daniele De Santis, Simone Marconcini, Francesco Briguglio, Marco Finotti
This clinical report illustrates a multidisciplinary approach for the rehabilitation of a young adult patient affected by a bilateral edentulous space and an anterior deep bite. The patient required orthodontics and surgical corticotomy and implantology (both performed with a piezo device). A multidisciplinary planning approach, including orthodontics, oral and periodontic surgery, and restorative dentistry, has an important role in the final outcome of treatment. In fact a dental class I occlusion has been established only on the right side...
December 2015: Int J Implant Dent
https://www.readbyqxmd.com/read/27746594/determination-of-vertical-dimension-of-occlusion-using-lateral-profile-photographs-a-pilot-study
#9
Dileep Nag Vinnakota, Krishna Chaitanya Kanneganti, Mahesh Pulagam, Gopala Krishna Keerthi
PURPOSE: To hypothesize a new theory based on soft tissue reference points on lateral profile photographs (LPPs) for determining the vertical dimension of occlusion (VDO), as there is need to explore for simple strategies. MATERIALS AND METHODS: Fifty-three participants in the age range of 20-27 years who met the inclusion criteria were recruited. LPPs were taken for all participants using standard protocol and duplicate copies obtained, on which five soft tissue reference points, nasion (Stn), subnasale (Stsn), porion (Stp), gnathion (Stgn), and gonion (Stg) (Stg prenoted on the face) were marked and joined to form angles; distance between Stsn and Stgn was considered as VDO in LPP (VDO-LP)...
October 2016: Journal of Indian Prosthodontic Society
https://www.readbyqxmd.com/read/27719699/-etiology-classification-and-systematic-restorative-treatment-of-tooth-wear
#10
X P Luo
Tooth wear has complex and multi-factorial etiologies that result in the surface loss of dental hard tissues. Clinic prevention and restorative technology of tooth wear are challenge for dentists with the increasing numbers of population and the transition of disease age. From the etiology and classification of tooth wear, it is crucial to accurately assess and diagnose a patient presenting with tooth wear. Fluoride application, sealant and resin bonded restoration are beneficial to manage the mild tooth wear...
October 9, 2016: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/27717716/postoperative-changes-in-mandibular-position-after-mandibular-setback-surgery-via-the-surgery-first-approach-in-relation-to-the-increase-of-vertical-dimension-and-the-amount-of-mandibular-setback
#11
Jeong Joon Han, Jong-Hyon Chong, Sun-Youl Ryu, Hee-Kyun Oh, Hong-Ju Park, Seunggon Jung, Min-Suk Kook
OBJECTIVES: This study aimed to compare preoperatively predicted rotational relapse with actual post-treatment mandibular position after mandibular setback surgery via the surgery-first approach and to evaluate the effect of the increase of vertical dimension (VD) on surgical occlusion and the amount of mandibular setback on postoperative mandibular positional changes. STUDY DESIGN: Twenty-nine patients who underwent bilateral sagittal split ramus osteotomy for mandibular prognathism were evaluated by using lateral cephalograms, which had been obtained preoperatively, immediately postoperatively, and immediately after debonding...
July 30, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/27711027/quantification-of-the-amount-of-dental-material-removed-by-selective-grinding-in-wax-dentures-with-photogrammetric-measurements
#12
Francesco Ravasini, Matteo Fornari, Mauro Bonanini
BACKGROUND: The use of photogrammetry may be a new method to quantify the amount of artificial dental material removed from the surface of each teeth during the grind procedure (SG). SG is necessary in each denture to reach a correct occlusion. It consists in a refine action on the prosthesis teeth's surface using milling machine tools, aimed to remove the interferences (pre-contacts) between upper and lower teeth during chewing. This measure is achieved after a comparison between pre and post-grinding 3D models...
December 2016: Minerva Stomatologica
https://www.readbyqxmd.com/read/27659076/prevalence-of-candida-spp-in-healthy-oral-mucosa-surfaces-with-higher-incidence-of-chronic-hyperplastic-candidosis
#13
Claúdia Arruda, Gabriela Artico, Roseli Freitas, Antônio Filho, Dante Migliari
INTRODUCTION: Predisposing factors in chronic hyperplastic candidosis (CHC) have been poorly recognized. This study aimed at assessing the prevalence of Candida spp. in areas of the oral mucosa showing greater prevalent rate of CHC, such as the retrocomissural area, the lateral borders of the tongue, and the hard-palate mucosa in four groups of individuals presenting predisposing factors as follows: Smoking habits (group I); patients with low salivary flow rate (SFR) (hyposalivation - group II); patients with loss of vertical dimension of occlusion (LVDO -group III); and control subjects (group IV)...
2016: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/27621553/management-of-a-rare-case-of-idiopathic-multiple-unerupted-impacted-permanent-teeth-in-an-adult-female-patient
#14
Karunakar Shetty, Mahesh Kumar, Susan Amanna, Srirangarajan Sridharan, Satyanarayan Reddy
This clinical case report describes the multi-disciplinary approach in the management of an unusual presentation of idiopathic multiple unerupted impacted permanent teeth in a 20-year-old female patient. The case was unique in that, not only were there multiple missing permanent teeth, but also over retained deciduous teeth and attrited existing permanent teeth with loss of vertical dimension of occlusion. Since the patient was young, it was decided to retain all the erupted permanent teeth and extract the infected deciduous teeth with the objective of fabricating overlay complete dentures...
July 2016: Journal of Indian Prosthodontic Society
https://www.readbyqxmd.com/read/27612023/effect-of-smile-index-and-incisal-edge-position-on-perception-of-attractiveness-in-different-age-groups
#15
J-C Chou, A Nelson, D Katwal, E N Elathamna, M T Durski
Changes in occlusal vertical dimension (OVD) and age have been found to affect Smile Index (SI, width/height of smile). Limited information is available regarding the aesthetic effects of these changes. The objective of this study was to evaluate the attractiveness of digitally manipulated smile images with differences in SI and incisal edge position (IEP) judged by respondents in different age groups. A total of 12 smile images were generated with varying SI (3·5, 5·3, 7·2, 9·0) and IEP (High, Medium, Low)...
November 2016: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/27529306/effects-of-increased-occlusal-vertical-dimension-on-the-jaw-opening-reflex-in-adult-rats
#16
Mio Makiguchi, Yukiha Funaki, Chiho Kato, Hidemasa Okihara, Takayoshi Ishida, Tadachika Yabushita, Satoshi Kokai, Takashi Ono
OBJECTIVE: Malocclusion with deep overbite and facial esthetics improve when facial height is intentionally increased during orthodontic extrusion of the posterior teeth. Thus, a better understanding of post-treatment stability of increased occlusal vertical dimension (iOVD) in adult patients is important. We focused on the jaw-opening reflex (JOR), which plays an important role in the control of jaw movements during mastication, and investigated the effects of iOVD on the JOR in rats with an electrophysiological technique...
August 10, 2016: Archives of Oral Biology
https://www.readbyqxmd.com/read/27525732/modified-occlusal-rim-design-and-use-of-phonetics-to-determine-anterior-tooth-position-and-vertical-dimension-a-clinical-report
#17
Mario F Romero, Thomas A DeRosa
Prosthetic rehabilitation of edentulous patients can sometimes pose many clinical challenges for the clinician. The importance of correct vertical and horizontal positioning of the anterior teeth so that the completed denture is esthetically pleasing while being functionally correct has been well documented in the literature. Different techniques have been proposed whereby a conventional occlusal rim is used. The wax-rim thickness of this design can interfere with the neutral zone, making normal phonetics difficult...
June 2016: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/27512690/posterior-maxillary-segmental-osteotomy-for-management-of-insufficient-intermaxillary-vertical-space-and-intermolar-width-discrepancy-a-case-report
#18
SeungWoo Baeg, SungWoon On, JeongKeun Lee, SeungIl Song
BACKGROUNDS: Insufficient intermaxillary space is caused by non-restoration following tooth extraction in the past, and this involves eruption of the opposing teeth and changes of the arch structure. Such cases are difficult just by a simple prosthetic approach, and diversified treatment plans should be established. Among these, posterior maxillary segmental osteotomy (PMSO) is an efficient treatment option than extraction of opposing teeth as it surgically repositions multiple erupted teeth and alveolar bone...
December 2016: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27468596/the-efficacy-of-hybrid-hyrax-mentoplate-combination-in-early-class-iii-treatment-a-novel-approach-and-pilot-study
#19
Vandana Katyal, Benedict Wilmes, Manuel Nienkemper, M Ali Darendeliler, Wayne Sampson, Dieter Drescher
INTRODUCTION: The aim of the present study was to assess the skeletal, dental and soft tissue effects of a specific treatment protocol in consecutively treated patients who presented with a Class III malocclusion. Treatment involved the use of a Hybrid Hyrax (HH) in the maxilla, a Mentoplate in the mandible and the application of continuous intra-oral Class III elastics. METHOD: The treated group was comprised of seven males and seven females (mean pretreatment age 10...
May 2016: Australian Orthodontic Journal
https://www.readbyqxmd.com/read/27433550/treatment-planning-of-adhesive-additive-rehabilitations-the-progressive-wax-up-of-the-three-step-technique
#20
Francesca Vailati, Sylvain Carciofo
A full-mouth rehabilitation should be correctly planned from the start by using a diagnostic wax-up to reduce the potential for remakes, increased chair time, and laboratory costs. However, determining the clinical validity of an extensive wax-up can be complicated for clinicians who lack the experience of full-mouth rehabilitations. The three-step technique is a simplified approach that has been developed to facilitate the clinician's task. By following this technique, the diagnostic wax-up is progressively developed to the final outcome through the interaction between patient, clinician, and laboratory technician...
2016: International Journal of Esthetic Dentistry
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