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https://www.readbyqxmd.com/read/28102940/effect-of-cast-modification-on-denture-base-adaptation-following-maxillary-complete-denture-processing
#1
Mohammed E Sayed, Amit Porwal, David Ehrenberg, Saul Weiner
PURPOSE: To investigate the effect of cast modifications on denture base adaptation in coronal and sagittal projections following maxillary complete denture processing. MATERIALS AND METHODS: A total of 60 edentulous maxillary casts (n = 10) were distributed among six groups. Group 1 was the control group with no modification, groups 2 through 6 included a butterfly postdam preparation, groups 3 and 4 also included a 10-mm wide/4-mm deep box with addition of four round holes in group 4, and groups 5 and 6 also included a 20-mm wide/4-mm deep box with addition of four round holes in group 6...
January 19, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28101497/the-factors-that-influence-postoperative-stability-of-the-dental-implants-in-posterior-edentulous-maxilla
#2
Yun-Ho Kim, Na-Rae Choi, Yong-Deok Kim
BACKGROUND: All clinicians are aware of the difficulty of installing a dental implant in posterior maxilla because of proximate position of maxillary sinus, insufficient bone width, and lower bone density. This study is to examine which factors will make the implantation in the posterior maxilla more difficult, and which factors will affect the postoperative implant stability in this region. METHODS: Five hundred seventy-three fixtures on the maxilla posterior were included for this study from all the patients who underwent an installation of the dental implant fixture from January 2010 to December 2014 at the Department of Oral and Maxillofacial Surgery in Pusan National University Dental Hospital (Yangsan, Korea)...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28100238/chronic-physical-conditions-multimorbidity-and-physical-activity-across-46-low-and-middle-income-countries
#3
Davy Vancampfort, Ai Koyanagi, Philip B Ward, Simon Rosenbaum, Felipe B Schuch, James Mugisha, Justin Richards, Joseph Firth, Brendon Stubbs
BACKGROUND: There are no nationally representative population-based studies investigating the relationship between physical activity, chronic conditions and multimorbidity (i.e., two or more chronic conditions) in low- and middle-income countries (LMICs), and studies on a multi-national level are lacking. This is an important research gap, given the rapid increase in the prevalence of chronic diseases associated with lifestyle changes in these countries. This cross-sectional study aimed to assess the association between chronic conditions, multimorbidity and low physical activity (PA) among community-dwelling adults in 46 LMICs, and explore the mediators of these relationships...
January 18, 2017: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/28098576/grafting-and-dental-implantation-in-patients-with-jawbone-cavitation-case-series-and-3-year-follow-up
#4
Ya-Wei Chen, Miguel Simancas-Pallares, Mauro Marincola, Sung-Kiang Chuang
PURPOSE: Jawbone cavitation (BC) is not uncommon and is considered to be related to some cases of unexpected implant displacement into deep jawbone space. Here, a series of cases with BC is described, in which the lesions were accidentally found and successfully treated by bone grafting and dental implantation. METHODS: Thirty-four partially edentulous patients who were found to have BC during dental implant surgeries were included in this study. Alloplast bone substitute (β-tricalcium phosphate) grafting with immediate or staged locking-taper implant placement was performed...
January 16, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28096641/assessment-of-periodontal-health-status-in-postmenopausal-women-visiting-dental-hospital-from-in-and-around-meerut-city-cross-sectional-observational-study
#5
D Deepa, Gazal Jain
BACKGROUND: Puberty, menses, pregnancy, and menopause are the different phases of a woman's life which have a varied influence on oral health. During the menopause, women go through biological and endocrine changes, particularly in their sex steroid hormone production which affects their health. Because the oral mucosa contains estrogen receptors, variations in hormone levels can be seen directly in the oral cavity leading to a few oral conditions and diseases seen more frequently during postmenopausal years...
October 2016: Journal of Mid-life Health
https://www.readbyqxmd.com/read/28095517/radiographic-evaluation-of-crestal-bone-level-in-split-crest-and-immediate-implant-placement-minimum-5-year-follow-up
#6
Giovanni B Bruschi, Paolo Capparé, Fabrizio Bravi, Nicola Grande, Enrico Gherlone, Giorgio Gastaldi, Roberto Crespi
PURPOSE: This study aimed to evaluate the radiographic bone level changes of implants positioned via the split-crest procedure both in the maxilla and mandible at a long-term follow-up. MATERIALS AND METHODS: Seventy-one patients were retrospectively enrolled in the study. The placement of 137 dental implants was performed in the edentulous premolar or molar region after a split-crest ridge expansion procedure. Implants followed a delayed loading protocol. Intraoral digital radiographs were performed at baseline, upon implant placement, at 70 days (following placement of the provisional prosthesis), and on a yearly basis during followup...
January 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28095515/effects-of-ultraviolet-photofunctionalization-on-bone-augmentation-and-integration-capabilities-of-titanium-mesh-and-implants
#7
Makoto Hirota, Takayuki Ikeda, Masako Tabuchi, Tomomichi Ozawa, Iwai Tohnai, Takahiro Ogawa
PURPOSE: Ultraviolet (UV)-mediated photofunctionalization has earned considerable attention for the enhancement of the biologic capabilities of titanium. The effects of photofunctionalization on bone augmentation and gap closure were examined using titanium implants and mesh in a rat femur model. MATERIALS AND METHODS: An acid-etched titanium implant (4-mm length, 1-mm diameter) was placed in the gluteal tuberosity that resembles a knife-edge-like edentulous ridge...
January 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28091858/will-wearing-dentures-affect-edentulous-patients-breathing-during-sleep
#8
Qiuwen Chen, Dong Zou, Hailan Feng, Shaoxia Pan
PURPOSES: The purpose of this study is to investigate the effect of wearing dentures on obstructive sleep apnea and hypopnea among completely edentulous patients. METHODS AND MATERIALS: A self-controlled study was conducted among 30 edentulous patients. Polysomnograms were recorded in the sleep laboratory on two consecutive nights. Participants slept with their dentures in one night and without dentures in the other. The apnea and hypopnea index (AHI), lowest oxygen saturation (L-SpO2), and morning blood pressure (MBP) were collected for statistical analysis...
January 14, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28089322/a-central-giant-cell-granuloma-in-posterior-part-of-maxilla-a-case-report
#9
Priyanka Garg, Jinendra Jain, Nayana De, Kushal Chatterjee
INTRODUCTION: Central Giant Cell Granuloma (CGCG) is an intraosseous lesion consisting of cellular fibrous tissue that contains multiple foci of hemorrhage, aggregations of multinucleated giant cells and occasionally trabeculae of woven bone1. PRESENTATION OF CASE: we are presenting a case of Central Giant Cell Granuloma on Maxilla. Extra oral examination revealed a diffuse swelling on the left side of face causing slight obliteration of nasio - nasolabial labial fold resulting in facial asymmetry & Intraoral examination shows a purple expansile mass in the region of upper left 26, 27 and 28 edentulous areas...
November 17, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28086998/evaluation-of-artifacts-generated-by-zirconium-implants-in-cone-beam-computed-tomography-images
#10
Taruska Ventorini Vasconcelos, Boulos B Bechara, Clyde Alex McMahan, Deborah Queiroz Freitas, Marcel Noujeim
OBJECTIVE: To evaluate zirconium implant artifact production in cone beam computed tomography images obtained with different protocols. STUDY DESIGN: One zirconium implant was inserted in an edentulous mandible. Twenty scans were acquired with a ProMax 3D unit (Planmeca Oy, Helsinki, Finland), with acquisition settings ranging from 70 to 90 peak kilovoltage (kVp) and voxel sizes of 0.32 and 0.16 mm. A metal artifact reduction (MAR) tool was activated in half of the scans...
February 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28081288/short-dental-implants-6-mm-versus-long-dental-implants-11-15-mm-in-combination-with-sinus-floor-elevation-procedures-3-year-results-from-a-multi-center-randomized-controlled-clinical-trial
#11
Veronika Pohl, Daniel S Thoma, Katarzyna Sporniak-Tutak, Abel Garcia-Garcia, Thomas D Taylor, Robert Haas, Christoph H F Hämmerle
AIM: To test whether or not the use of short dental implants (6 mm) results in an implant survival rate similar to that with longer implants (11-15 mm) in combination with sinus grafting. METHODS: This multi-center study enrolled 101 patients with partial edentulism in the posterior maxilla and a remaining bone height of 5-7 mm. Included patients were randomly assigned to receive short implants (6 mm; GS / group short) or long implants (11-15 mm) simultaneously with sinus grafting (GG / group graft)...
January 12, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28078781/a-novel-conversion-method-for-radiographic-guide-into-surgical-guide
#12
Yao-Te Peng, Chung-Chih Tseng, Yi-Chun Du, Yen-Nien Chen, Chih-Han Chang
BACKGROUND: The study proposed a novel method for converting a radiographic guide into a surgical guide and evaluated its accuracy. MATERIALS AND METHODS: Radiographic guide was reformed with the addition of index rods for geometric conversion method (GCM). Planning implants were projected on geometric projection planes, and the implant positions were measured. The radiographic guide was converted into surgical guide using a generic bench drill machine with GCM data...
January 11, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28073636/prognosis-of-double-crown-retained-removable-dental-prostheses-compared-with-clasp-retained-removable-dental-prostheses-a-retrospective-study
#13
Keita Ishida, Toshifumi Nogawa, Yoshiyuki Takayama, Masayasu Saito, Atsuro Yokoyama
PURPOSE: The present study compared the clinical prognosis of double crown-retained removable dental prostheses (D-DRPs) with that of clasp-retained removable dental prostheses (C-RDPs). METHODS: Clinical records of 201 patients who had received 52 D-RDPs with 144 abutment teeth (D-teeth) and 199 C-RDPs with 399 abutment teeth (C-teeth) at the Prosthetic Dentistry Clinic in Hokkaido University Hospital between April 2005 and June 2015 were analyzed. Survival and complication probabilities of the two types of prostheses and abutment teeth were evaluated using the Kaplan-Meier method and compared using the log-rank test...
January 7, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28072686/design-and-fabrication-of-complete-dentures-using-cad-cam-technology
#14
Weili Han, Yanfeng Li, Yue Zhang, Yuan Lv, Ying Zhang, Ping Hu, Huanyue Liu, Zheng Ma, Yi Shen
The aim of the study was to test the feasibility of using commercially available computer-aided design and computer-aided manufacturing (CAD/CAM) technology including 3Shape Dental System 2013 trial version, WIELAND V2.0.049 and WIELAND ZENOTEC T1 milling machine to design and fabricate complete dentures.The modeling process of full denture available in the trial version of 3Shape Dental System 2013 was used to design virtual complete dentures on the basis of 3-dimensional (3D) digital edentulous models generated from the physical models...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28068265/treatment-of-refractory-complete-edentulism-a-case-report
#15
Lajja Patel, Elizabeth A Clemente, James F Skiba
With the advent of osseointegrated dental implant therapy in the last few decades, complete edentulism of the mandible can be treated and restored predictably and successfully. However, due to medical and financial considerations, many patients cannot avail themselves of this therapy. This article presents a case report of such a patient treated with advanced yet traditional denture construction protocols. These conventional protocols should still be considered for addressing the needs of a patient with medical or financial restrictions...
January 2017: General Dentistry
https://www.readbyqxmd.com/read/28060024/stress-distribution-in-an-implant-supported-mandibular-complete-denture-using-different-cantilever-lengths-and-occlusal-coating-materials
#16
Rodrigo Antonio de Medeiros, Marcelo Coelho Goiato, Aldiéris Alves Pesqueira, Aljomar José Vechiato Filho, Liliane da Rocha Bonatto, Daniela Micheline Dos Santos
PURPOSE: The aim of this study was to assess stress distribution in the bone-implant interface of a mandibular implant-supported prosthesis with different cantilever lengths, aesthetic coating materials, and implant abutments. MATERIALS AND METHODS: A photoelastic model of an edentulous mandible, containing 5 external hexagon implants, was constructed. Experimental models were divided into 6 groups: group 1-UCLA component and metal bar; group 2-UCLA component and acrylic resin coating; group 3-UCLA component and porcelain coating; group 4-abutment and metal bar; group 5-abutment and acrylic resin coating; and group 6-abutment and porcelain coating...
January 4, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28050978/prevalence-location-and-size-of-maxillary-sinus-septa-computed-tomography-scan-analysis
#17
Ferial Taleghani, Maryam Tehranchi, Shahryar Shahab, Zahra Zohri
INTRODUCTION: The present study was undertaken to evaluate the anatomy of the maxillary sinus in relation to its position and the height of its septa, using cone beam computed tomography (CBCT). MATERIALS AND METHODS: In this descriptive retrospective study, 300 CBCT images of maxillary sinuses of patients with posterior maxillary edentulism were evaluated. The maxillary sinus septa were evaluated in relation to their prevalence, height, and position; t-test and Mann-Whitney tests were used for the analysis of data...
January 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28050108/rehabilitation-of-completely-edentulous-mandibular-arch-using-immediately-loaded-transmucosal-single-piece-implants-and-overdenture
#18
Dinesh Kumar, V S Legha, K V Arun Kumar, Shakeel Ahmad
No abstract text is available yet for this article.
December 2016: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/28048965/the-developing-stability-of-posterior-mandibular-implants-associated-with-bone-expansion-and-conventional-drilling-techniques
#19
Yen Ting Lin, Adrienne Hong, Ying Chin Peng, Hsiang Hsi Hong
Clinical decisions regarding the stability and osseointegration of mandibular implants positioned using the bone expansion techniques are conflicting and limited. The objective was to evaluate the stability of implants placed using two surgical techniques, selected according to the initial width of the mandibular posterior edentulous ridge, with D3 bone density, during a 12-week period. Fifty-eight implants in 33 patients were evaluated. Thirty-two implants in 24 patients were positioned using the osteotome expansion technique, and twenty-six fixtures in 17 patients were installed using the conventional drilling technique...
January 3, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28048947/effect-of-implant-position-and-span-length-on-stresses-around-implants-assisting-claspless-distal-extension-partial-overdentures-an-invitro-study
#20
Moustafa Abdou Elsyad, Ahmed Kabeel, Nesreen Elmekawy
The aim of this invitro study was to evaluate the effect of implant position and edentulous span length on stresses around implants assisting claspless distal extension partial overdentures.Four bilateral mandibular distal extension acrylic models were constructed. Two implants were inserted in the distal extension ridges parallel to each other and perpendicular to the ridges. Based on the implant position, models were categorized into two groups: Group I, mesial implants position and Group II, distal implant position...
January 3, 2017: Journal of Oral Implantology
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