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denture insertion

Keitaro Kubo, Takashi Koike, Takayuki Ueda, Kaoru Sakurai
STATEMENT OF PROBLEM: Information is lacking about the selection criteria for silicone resilient denture liners applied as a matrix material for attachments on overdentures. PURPOSE: The purpose of this in vitro study was to investigate the mechanical properties of silicone resilient denture liners and their influence on the initial retention force of overdenture attachments and the reduction in retention force over time. MATERIAL AND METHODS: Nine types of silicone resilient denture liner were injected and fixed to the matrix section of an experimental denture base...
March 15, 2018: Journal of Prosthetic Dentistry
Severine L. Staub, Eckart Teubner, Nicola U. Zitzmann
The aim of this retrospective study was to investigate the clinical outcome of Dalbo®-Rotex® retention elements in a private practice. The majority of the retention elements was fixed with self-adhesive composite cement, and in almost 40% the exposed root surface was additionally covered with composite. The success rate of 96.3% after 24 months in a total of 50 included patients (response rate 48.5%) demonstrated that a simple and cost-effective fixation of removable dentures using prefabricated, chair-side inserted retention elements is feasible...
March 12, 2018: Swiss Dental Journal
Kensuke Yamauchi, Shinnosuke Nogami, Yoshihiro Kataoka, Shigeto Koyama, Bernd Lethaus, Tetsu Takahashi
The objective of this study was to present a novel procedure for cortical bone repositioning (CBR) that maintains a secure space under the periosteum by replacement of the lateral cortex via fixation, employing titanium screws. Seven systemically healthy patients presenting with horizontal alveolar bone defects in radiographs and CT images were enrolled for CBR technique for horizontal alveolar bone augmentation. A lateral cortical bone block was cut in the defects and freed from the original bony surface. A screw was inserted into the block, and the block was placed laterally to allow fixation...
March 7, 2018: International Journal of Periodontics & Restorative Dentistry
Andreas Worni, Stefan Paul Hicklin, Regina Mericske-Stern, Norbert Enkling
OBJECTIVE: The aim of the present prospective clinical study was to assess the survival rate and the radiologic crestal bone level alteration around four interforaminal immediately loaded narrow-diameter implants (NDIs) in the edentulous mandible. METHOD AND MATERIALS: A total of 20 participants received each 4 NDIs (MDI, 3M Espe; diameter 1.8 mm, length 13 or 15 mm) in the edentulous mandible. Immediate loading was performed if insertion torque was 35 Ncm or higher...
February 26, 2018: Quintessence International
Mirza Rustum Baig, Jaber Hussain Akbar, Muawia Qudeimat, Ridwaan Omar
PURPOSE: To evaluate the effects of impression material, impression tray type, and type of partial edentulism (ie, Kennedy class) on the accuracy of fit of cobalt-chromium (Co-Cr) partial removable dental prostheses (PRDP) in terms of the number of fabricated frameworks required until the attainment of adequate fit. MATERIALS AND METHODS: Electronic case documentations of 120 partially edentulous patients provided with Co-Cr PRDP treatment for one or both arches were examined...
February 15, 2018: International Journal of Prosthodontics
Abhishek Shekhar, Samiran Das, Jayanta Bhattacharyya, Preeti Goel, Sayan Majumdar, Soumitra Ghosh
Aims: This study aims to find the effect of change in different salivary factors before and after complete denture insertion and to measure the maxillary denture retention in different arch forms. Materials and Methods: Thirty completely edentulous individuals (10 each of square, tapered, and ovoid arch form of maxilla) belonging to the age group of 40-70 years were selected. Salivary factors (flow, density, pH, viscosity, and total protein) were evaluated before and after denture insertion...
January 2018: Journal of Indian Prosthodontic Society
Namrata Agrawal, Sumeet Jain, Deepak Agrawal
Introduction: The two implant-supported overdentures have overcome the retention and stability-related problems of conventional mandibular denture. Stud attachments are widely available, less expensive, and easy to use. Aims and Objectives: To determine fatigue resistance of two different stud attachments with two denture base materials - autopolymerizing and heat cure acrylic resin till 4320 cycles simulating 03 years of service. Materials and Methods: Stud implant overdenture attachments, i...
January 2018: Journal of Indian Prosthodontic Society
Mana Torii, Toyoki Nakata, Kazuya Takahashi, Noboru Kawamura, Hidemasa Shimpo, Chikahiro Ohkubo
PURPOSE: With computer-aided design and computer-aided manufacturing (CAD/CAM), the study was conducted to create a removable partial denture (RPD) framework using repeated laser sintering rather than milling and casting techniques. This study experimentally evaluated the CAM clasp and compared it to a conventional cast clasp. METHODS: After the tooth die was scanned, an Akers clasp was designed using CAD with and without 50μm of digital relief on the occlusal surface of the tooth die...
February 7, 2018: Journal of Prosthodontic Research
H S Indrakumar, Deepa Venkatesh, Vidya V Adoni, Rucha Kashyap, D Jayanthi, Nikhil Prakash
INTRODUCTION: Edentulism is one of the debilitating states affecting a significant portion of the geriatric population. It is often considered as the ultimate marker for predicting the pressure and burden on oral health. Respiration is also a routine vital function running continuously through the human body and most commonly assessed by a spirometer. Hence, we planned the present study to assess the impact of complete dentures on the functioning of the respiratory system. MATERIALS AND METHODS: In the present study, a spirometric assessment of the effect of complete dentures on respiratory performance was done...
February 1, 2018: Journal of Contemporary Dental Practice
Toshihito Takahashi, Tomoya Gonda, Yoshinobu Maeda
PURPOSE: The aim of this study was to examine the deformation modality of palateless maxillary implant overdentures using isolated attachments under various implant configurations. MATERIALS AND METHODS: A maxillary edentulous model with implants inserted in the anterior, premolar, and molar areas was fabricated, and three types of unsplinted attachments-ball, locator, and magnet-were set on the implants distributed in various configurations. Experimental palateless dentures were fabricated, and two strain gauges were attached at the anterior midline of the labial and palatal sides...
January 2018: International Journal of Oral & Maxillofacial Implants
Moustafa Abdou ELsyad, Radwa Mohsen Emera, Tarek Mohy Ashmawy
PURPOSE: To evaluate the effect of distal implant inclination on axial and nonaxial retentive forces of different Locator attachments used to retain mandibular overdentures. MATERIALS AND METHODS: Four duplicate mandibular edentulous acrylic models received 2 implants in the canine areas with 0°, 5°, 10°, and 20° distal inclinations. Experimental overdentures were connected to the implants with Locator extra light retention (Le), Locator light retention (Ll), and Locator medium retention (Lm)...
November 16, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
Y Satokawa, I Minami, N Wakabayashi
Oral appliances with an occlusal flat table are used as treatment dentures. However, the short-term effect of insertion of such oral appliances on chewing has not been reported. This study aimed to determine whether experimental and continuous insertion of oral appliances with an occlusal flat table has an effect on chewing efficiency and Oral Health Impact Profile (OHIP) in healthy participants. Ten participants each in the oral-appliance and control (no oral-appliance insertion) groups attended six data collection sessions for 5 consecutive days...
February 2018: Journal of Oral Rehabilitation
Bassam Hassan, Marcus Greven, Daniel Wismeijer
PURPOSE: To integrate extra-oral facial scanning information with CAD/CAM complete dentures to immediately rehabilitate terminal dentition. MATERIALS AND METHODS: Ten patients with terminal dentition scheduled for total extraction and immediate denture placement were recruited for this study. The patients were submitted to a facial scanning procedure using the in-office PritiMirror scanner with bite registration records in-situ. Definitive stone cast models and bite records were subsequently submitted to a lab scanning procedure using the lab scanner (iSeries DWOS; Dental Wings)...
October 2017: Journal of Advanced Prosthodontics
Ana Clara Soares Paiva Tôrres, Amanda de Queiroz Maciel, Danielle Bezerra de Farias, Annie Karoline Bezerra de Medeiros, Flávia Patrícia Tavares Veras Vieira, Adriana da Fonte Porto Carreiro
PURPOSE: To evaluate the effect of the technical quality of conventional complete dentures (CD) on masticatory efficiency and quality of life (QoL) of denture wearers during a 1-year follow-up. MATERIALS AND METHODS: A prospective clinical trial with 32 edentulous patients (mean age of 60.2 years) wearing mandibular and maxillary dentures was conducted. All patients were evaluated wearing their preexisting dentures and after 3, 6, and 12 months postinsertion of new dentures...
November 9, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
Tamer Celakil, Azize Demir, Haluk Keskin
This report presents the case of a 60-year-old male patient with trismus induced by radiotherapy and fabrication of a sectional mandibular complete denture to allow the insertion of the denture into the mouth. A mandibular sectional denture was designed in two pieces with a locking mechanism by using mini anchor and ball abutment housing with cap. Patients who have undergone maxillectomy often have constricted mouth openings, as a result of surgical intervention and radiotherapy, and complain of an inability to insert or remove dentures...
2017: Journal of Istanbul University Faculty of Dentistry
Fernanda Valentini, Murilo Souza Luz, Noéli Boscato, Tatiana Pereira-Cenci
PURPOSE: This randomized clinical trial assessed how surface roughness (Ra) in resilient liners was affected by soft tissue health conditions and time-related aspects in patients with complete dentures. METHODS: Specimens of acrylic resin (control) and denture liners (silicone-based or acrylic resin-based) were inserted into the dentures of patients with and without denture stomatitis (n = 30). Ra was evaluated before denture insertion and after 7, 14, and 21 days of prosthesis wearing...
November 2017: International Journal of Prosthodontics
Ruben Muñoz, Golaszewski Gajos, Jose Bladimir, Diaz Carvajal, Alvaro Luis, Grace Del Valle Speranza
INTRODUCTION: This study describes a modified protocol using transmandibular zygomatic implants with immediate occlusal loading for the comprehensive dental rehabilitation of previously reconstructed mandibular defects and reports preliminary results of this modified protocol. MATERIALS AND METHODS: Fifteen patients (6 female and 9 male), with a mean of age 40.26 years (range 12 to 68 years), had previously undergone immediate mandibular reconstruction using either autologous bone grafting, bone transport, or microvascular free-flap reconstruction for a variety of diagnoses...
October 28, 2017: Oral and Maxillofacial Surgery
Moustafa Abdou ELsyad, Omar Emhemed Abo Hatem, Ahmad Fathalla Shawky, Radwa Mohsen Kamal Emera
PURPOSE: To evaluate the effect of different degrees of mesial implant inclinations on the retention and stability of two-implant mandibular overdentures retained with stud attachments. MATERIALS AND METHODS: Four experimental mandibular acrylic models were constructed. Two laboratory implants were inserted in the canine areas of each model with the following degrees of mesial inclinations: 0, 5, 10, and 20 degrees. Experimental overdentures were connected to the implants with Locator extra-light retention (Le), Locator light retention (Ll), and Locator medium retention (Lm)...
October 13, 2017: International Journal of Oral & Maxillofacial Implants
Camila H Campos, Giselle R Ribeiro, Renata C M Rodrigues Garcia
STATEMENT OF PROBLEM: Alzheimer disease (AD) can affect masticatory function, affecting oral health-related quality of life (OHRQoL). Whether oral rehabilitation with conventional removable prostheses can restore masticatory function and improve OHRQoL in these individuals is unknown. PURPOSE: The purpose of this clinical study was to evaluate the influence of oral rehabilitation with removable prostheses on masticatory efficiency and OHRQoL in elders with and without AD...
September 27, 2017: Journal of Prosthetic Dentistry
Fernanda P de Caxias, Daniela M Dos Santos, Marcelo C Goiato, Sandro B Bitencourt, Emily V F da Silva, Murilo C B Laurindo-Junior, Karina H L Turcio
STATEMENT OF PROBLEM: Many elderly individuals are rehabilitated with removable complete dentures, which require an initial adaptation period for both oral perception and the perioral muscles. Studies assessing the changes in stimulus perception and the electromyographic (EMG) activity of the orbicularis oris muscle shortly after conventional complete denture insertion are lacking. PURPOSE: The purpose of this clinical study was to evaluate the effect of mouth rehabilitation with removable complete dentures on stimulus perception and the EMG activity of the orbicularis oris muscle...
September 26, 2017: Journal of Prosthetic Dentistry
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