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Tim Hilgenfeld, Alexander Juerchott, Ulrich Karl Deisenhofer, Johannes Krisam, Peter Rammelsberg, Sabine Heiland, Martin Bendszus, Franz Sebastian Schwindling
OBJECTIVES: To evaluate the diagnostic value of cone-beam computed tomography (CBCT), intraoral radiography (IR), and dental magnetic resonance imaging (dMRI) for detecting and classifying peri-implant bone defects at zirconia implants. MATERIALS AND METHODS: Forty-eight zirconia implants were inserted in bovine ribs, 24 of which had standardized defects (1-wall, 2-wall, 3-wall, 4-wall) in two sizes (1 and 3 mm). CBCT, IR, and dMRI were performed and analyzed twice by four readers unaware of the nature of the defects...
August 15, 2018: Clinical Oral Implants Research
Mihri Amasyalı, Fidan Alakuş Sabuncuoğlu, Uğur Oflaz
The aim of the present study was to evaluate the effects of the miniscrew-supported, modified Hyrax appliance on bilateral distalization of posterior teeth. A 15-year-old girl with Class II malocclusion (end-to-end molar relationships, space deficiency for maxillary canine) underwent orthodontic treatment. The patient rejected tooth extraction. Then, she was treated with the miniscrew-supported, modified Hyrax appliance. An activation of 1 mm per month was planned. Lateral cephalometric views were used to evaluate distal movement...
March 2018: Turk J Orthod
George Michelinakis, Manolis Pavlakis, Dimosthenis Igoumenakis
Rehabilitation of a partially dentate postmaxillectomy patient using a novel approach is presented in this report. The patient was referred to our practice by the oral and maxillofacial surgery department of the local general hospital for the evaluation and prosthetic treatment planning. He had undergone biopsy for a lesion located in the right quadrant of his maxilla and was scheduled for a hemimaxillectomy for removal of a squamous cell carcinoma. A surgical obturator was prepared for placement at the time of ablative surgery...
July 2018: Journal of Indian Prosthodontic Society
Rahul Paul, Samiran Das, Jayanta Bhattacharyya, Soumitra Ghosh, Preeti Goel, Kaushik Dutta
Context: Determination of horizontal condylar guidance (HCG) by various clinical and radiographic methods was performed by several investigators. If a correlation between HCG values using lateral radiographic tracing and protrusive interocclusal records can be established, the necessity of performing elaborate recording procedures can be eliminated. Aims: The aim of this study is to evaluate and to compare the correlation between HCG values in edentulous people using the protrusive interocclusal records mounted on a semi-adjustable articulator with the manual tracing of panoramic radiograph and lateral cephalogram...
July 2018: Journal of Indian Prosthodontic Society
Thara Maria Joseph, R Ravichandran, S Lylajam, Prasanth Viswabharan, Kavitha Janardhanan, Smitha Rajeev
Background: Prosthesis misfit plays an important role in complications such as occlusal and abutment screw loosening and fracture in implant restorations. Reproducing the intraoral relationship of implants through impression procedures is the first step in achieving an accurate, passively fitting prosthesis to ensure maximum accuracy. Hence, splinting of multiple implants with most accurate material may be a valid option. Context: The results of splinting multiple implants are always inconsistent, and there is limited literature available to compare the accuracy of impression techniques as well as materials...
July 2018: Journal of Indian Prosthodontic Society
Reinhilde Jacobs, Myrthel Vranckx, Tony Vanderstuyft, Marc Quirynen, Benjamin Salmon
AIM: The objective of this systematic review was to evaluate the diagnostic value of CBCT compared with 2D imaging and clinical gold standard techniques in peri-implant bone defect detection and measurement. MATERIALS AND METHODS: Literature search was performed using MEDLINE, Embase and Web of Science databases up to July 2017. Clinical, ex vivo, in vitro and animal studies that assessed and measured peri-implant bone defects using different imaging modalities were included in this review...
2018: European Journal of Oral Implantology
Zeynep F Zor, Emine Kaygisiz, Can Ates, Tuba Tortop, Sema Yuksel
OBJECTIVES: To evaluate the mandibular retromolar space after facemask therapy and a follow-up period.  Methods: This retrospective study was conducted between May and September in 2014. The sample consisted of pre-treatment (T1), post-treatment (T2), and follow-up(T3) panoramic radiographs of 19 skeletal and dental Class III patients (7 female, 12 male; mean age: 10.5 years) treated with facemask and a removable intraoral upper appliance in the Faculty of Dentistry Gazi University, Ankara, Turkey...
August 2018: Saudi Medical Journal
T Schuldt, B Kramp, A Ovari, D Timmermann, S Dommerich, R Mlynski, P Ottl
After laryngectomy, a new voice is needed. We present the first steps in the development of a smartphone-based method. A microphone is placed in the mouth to record the pseudo-whispering voice of laryngectomized patients. This recording is analyzed by voice recognition software followed by voice synthesis. Eventually, this will be performed on a smartphone. We placed a microphone at 10 different places inside and outside the mouth (two in front of the mouth (at 2 and 20 cm), five on the palate and three on the lower jaw) and made voice recordings in eight healthy men...
August 13, 2018: HNO
Janina Golob Deeb, Sompop Bencharit, Christopher A Loschiavo, Matthew Yeung, Daniel Laskin, George R Deeb
PURPOSE: A major advantage of guided implant surgery using 3-dimensionally printed guides is the ability to perform accurate flapless surgery. A drawback of a flapless technique is the inability to manipulate soft tissue to ensure sufficient gingiva around the implant. The purpose of this study was to determine how often flapless surgery using surgical guides results in less than 2 mm of keratinized tissue surrounding the implant. MATERIALS AND METHODS: This retrospective analysis included 27 maxillary and 27 mandibular implant sites that underwent treatment planning for implant-guided surgery using 3Shape Implant Studio (3Shape, Copenhagen, Denmark)...
July 19, 2018: Journal of Oral and Maxillofacial Surgery
L E Lubis, I Bayuadi, Y A Bayhaqi, F Ardiansyah, A R Setiadi, R D Sugandi, L A Craig, A Nasir, R A Basith, S A Pawiro, D S Soejoko
Dose metrics on intraoral and panoramic dental radiography were analyzed to preliminarily indicate dose trend of dental radiology equipment in Indonesia. Measurements were performed in 71 healthcare institutions involving a total of 92 dental X-ray devices. Imaging modes are categorized into 'low dose' and 'high dose' based on the task. The 75th percentile for intraoral IAK was 2.8 and 4.3 mGy for 'low' and 'high' dose modes, respectively while for panoramic devices the 75th percentile of the KAP for 'low' and 'high' dose modes were 85...
August 7, 2018: Radiation Protection Dosimetry
Aiqin Hu, Xiaocong Li, Danna Chen, Ting Lu, Jin Huang, Xiangmin Xu, Dong Chen, Fu Xiong
OBJECTIVE: To analyze the clinical phenotype of a Chinese pedigree affected with hereditary dentinogenesis imperfecta and mutation of dentin sialophosphoprotein (DSPP) gene. METHODS: Affected members underwent intraoral photography, dental film and panoramic radiography. Genomic DNA was extracted from peripheral venous blood samples. Coding regions of the DSPP gene were subjected to PCR amplification and Sanger sequencing. Functional effect of the mutation was predicted with SIFT and PolyPhen-2...
August 10, 2018: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
Kamran Ali, Josephine Cockerill, Daniel Zahra, Haroon S Qazi, Ulfat Raja, Khurram Ataullah
AIMS: To evaluate the self-perceived preparedness to practice of final year dental undergraduate students in three dental institutions. METHODS: Dental undergraduate students in their final year from three dental institutions in Pakistan were invited to participate in an online study to assess self-perceived preparedness using a validated preparedness assessment scale. RESULTS: In total, 134 students responded to the questionnaire yielding a response rate of 72%...
August 11, 2018: European Journal of Dental Education: Official Journal of the Association for Dental Education in Europe
Emily A Eismann, Robert A Shapiro, Jonathan Thackeray, Kathi Makoroff, Colleen J Bressler, Grace J Kim, Lori Vavul-Roediger, Paul McPherson, Eugene Izsak, Sandra P Spencer
OBJECTIVES: The objectives of this study were to assess the ability of pediatric health care providers and social workers to recognize sentinel injuries in infants under 6 months of age and to determine what factors influence their decision to evaluate for physical abuse. METHODS: A statewide collaborative focused on sentinel injuries administered a survey to pediatric health care providers and social workers in the emergency department, urgent care, and primary care...
August 8, 2018: Pediatric Emergency Care
Mikel Iturrate, Rikardo Minguez, Guillermo Pradies, Eneko Solaberrieta
This article describes a technique for obtaining an accurate complete-arch digital scan for an edentulous patient. To achieve this, an auxiliary polymeric device that simulates a denture is designed, fabricated, and placed in the mouth. This device, having the geometry of a typical dental arch, facilitates the digitalization of the edentulous complete arch. This is because the change in radius of the curvature (change of geometry) enables the scanner to perform a more accurate alignment. Initially, the necessary location of the implants is acquired, and then the soft tissue is added...
August 7, 2018: Journal of Prosthetic Dentistry
Marta Revilla-León, Adriana Besné-Torre, Jose Luis Sánchez-Rubio, Javier J Fábrega, Mutlu Özcan
The development of technologies including intraoral scanners, dental software for digital restoration design, and additive manufacturing has improved the digital workflow of restorative treatment. The present article describes a digital workflow with intraoral scanning, computer-aided design (CAD) software, and subtractive and additive manufacturing procedures for a patient receiving lithium disilicate laminate veneers.
August 7, 2018: Journal of Prosthetic Dentistry
Ivana Meyer Prado, Lucas Guimarães Abreu, Karen Simon Silveira, Sheyla Márcia Auad, Saul Martins Paiva, Daniele Manfredini, Júnia Maria Serra-Negra
STUDY OBJECTIVES: To evaluate the prevalence of probable sleep bruxism (SB) and its association with sleep features, orthodontic fixed appliance wearing, and extraoral and intraoral clinical signs and symptoms in a population of adolescents. METHODS: Two hundred thirty-nine 12-year-old adolescents enrolled in private and public schools in Brumadinho, southeast Brazil, and their parents were invited to participate. They answered a questionnaire containing information regarding adolescents' sleep features and history of SB...
August 6, 2018: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
Chloé Kastoer, Marijke Dieltjens, Sara Op de Beeck, Marc J Braem, Paul H Van de Heyning, Olivier M Vanderveken
STUDY OBJECTIVES: The potential of a remotely controlled mandibular positioner (RCMP) during sleep studies in individual patients suffering from obstructive sleep apnea (OSA) for the determination of the effective target protrusive position (ETPP) of the mandible has been demonstrated. The research goal of this study was to assess the feasibility of the application of RCMP during drug-induced sleep endoscopy (DISE) for the determination of ETPP. METHODS: Ten patients in whom OSA was diagnosed (50% male; age 54 ± 9...
August 6, 2018: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
Khaled Q Al Hamad, Bashar A Al Rashdan, Wael M Al Omari, Nadim Z Baba
PURPOSE: To evaluate the fit of single crowns fabricated using conventional, digital, or cast digitization methods. MATERIALS AND METHODS: One subject with a peg-shaped maxillary lateral incisor was selected in this study. Tooth preparation for an all-ceramic crown was performed and 10 conventional poly(vinyl siloxane) impressions, and 10 digital impressions using an intraoral scanner were made. Each working cast was scanned using a laboratory scanner and an intraoral scanner...
August 8, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
Venkatesh Anehosur, Abhijit Joshi, Saravanan Rajendiran
Management of condylar fractures is a highly controversial and debatable area. Open reduction and internal fixation (ORIF) using an extraoral approach has certain benefits over the nonsurgical treatment. Risk of damage to the facial nerve and an extraoral scar remains constant deterrents. An endoscopic-assisted ORIF offers an intraoral approach, thus eliminating consequences such as scarring. Though this technique offers unparalleled advantages, it is associated with a steep learning curve. Surgical results improve only with patience and experience...
September 2018: Craniomaxillofacial Trauma & Reconstruction
Florian D Grill, Lucas M Ritschl, Franz X Bauer, Andrea Rau, Dominik Gau, Maximilian Roth, Markus Eblenkamp, Klaus-Dietrich Wolff, Denys J Loeffelbein
Computer-aided design and computer-aided manufacturing (CAD/CAM) technology has been implemented in the treatment of cleft lip and palates (CLP) by several research groups. This pilot study presents a technique that combines intraoral molding with a semi-automated plate generation and 3D-printing. The clinical results of two intraoral molding approaches are compared. This is the first clinical investigation of semi-automated intraoral molding. Our study included newborns with unilateral CLP. Plaster models were digitalized and measured by two independent observers...
August 7, 2018: Scientific Reports
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