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https://www.readbyqxmd.com/read/27904088/the-effect-of-implant-diameter-on-strain-around-implants-retaining-a-mandibular-overdenture-with-locator-attachments-an-in-vitro-study
#1
Moustafa Abdou Elsyad, Ahmed Abdelsalam Elhddad, Ahmed Samir Khirallah
This study evaluated the effect of implant diameter on strain around implants retaining mandibular overdentures with Locator attachments. Three mandibular acrylic resin models were constructed with 2 implants inserted in canine areas and classified according to implant diameter into 3 groups: large (4.2 mm), medium (3.7 mm), and small (3.3 mm) diameter implants. Duplicate dentures were connected to the implants with Locator attachments. Four strain gauges were bonded to the acrylic resin at mesial, distal, buccal and lingual surfaces of each implant and strain was measured at loading and non-loading sides during 1st premolar and 1st molar loading...
2016: Dental Materials Journal
https://www.readbyqxmd.com/read/27892564/zirconia-based-dental-ceramics-structure-mechanical-properties-biocompatibility-and-applications
#2
Chandkiram Gautam, Jarin Joyner, Amarendra Gautam, Jitendra Rao, Robert Vajtai
Zirconia (ZrO2) based dental ceramics have been considered to be advantageous materials with adequate mechanical properties for the manufacturing of medical devices. Due to its very high compression strength of 2000 MPa, ZrO2 can resist differing mechanical environments. During the crack propagation on the application of stress on the surface of ZrO2, a crystalline modification diminishes the propagation of cracks. In addition, zirconia's biocompatibility has been studied in vivo, leading to the observation of no adverse response upon the insertion of ZrO2 samples into the bone or muscle...
November 28, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/27881308/technique-for-transferring-the-path-of-insertion-of-a-removable-partial-denture-to-a-cad-cam-generated-implant-surgical-template
#3
Thomas L Kwun, Michael Razzoog
A technique is described that uses a surveyor, gutta percha points, and a computer-aided design and computer-aided manufacturing (CAD-CAM)-guided implant surgery system to predetermine and transfer the ideal angulation of the implant to be placed.
October 27, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27861659/effects-of-reinforcement-on-denture-strain-in-maxillary-implant-overdentures-an-in-vitro-study-under-various-implant-configurations
#4
Toshihito Takahashi, Tomoya Gonda, Yoshinobu Maeda
PURPOSE: Maxillary implant overdentures are often designed without palatal coverage to maximize wearer comfort. Although palateless dentures have been reported to be less rigid than conventional dentures, and require reinforcement to prevent complications, there is little documentation about the effects of such reinforcement. The purpose of this study was to examine the effects of reinforcement on the strain on maxillary implant overdentures supported by implants in a variety of configurations...
November 2016: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/27825664/-florid-osseous-dysplasia-management-of-a-symptomatic-case
#5
M Maccotta, L Radoï
INTRODUCTION: Florid osseous dysplasia is a rare and benign fibro-osseous pathology, in which bone is replaced by fibrous tissue and metaplastic bone. It can remain asymptomatic for a long time and is most often discovered incidentally during a radiological examination. Sometimes, patients are seen because of an infectious complication. OBSERVATION: An edentulous 62 years-old woman was referred for a painful mandibular swelling preventing insertion of her removable denture...
November 4, 2016: Revue de Stomatologie, de Chirurgie Maxillo-faciale et de Chirurgie Orale
https://www.readbyqxmd.com/read/27752175/-quantitative-evaluation-of-fabricating-complete-denture-by-computer-numerical-control-in-manufacturing-dentition-and-baseplate-separately-plus-adhesive-molding
#6
H Wang, P J Lv, Y Wang, Y C Sun
OBJECTIVE: To quantitatively evaluate the assembly precision of fabricating complete denture by computer numerical control (CNC) in manufacturing dentition and baseplate separately plus adhesive molding. METHODS: The 3D surface data of a standard edentulous maxilla plaster cast model and the temporary base-plate were obtained using an Activity 880 3D scanner. The data (data1) of a complete denture were designed using a set of computer aided design (CAD) software developed by the research group of this study...
October 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27749520/rehabilitation-of-full-mouth-edentulism-immediate-loading-of-implants-inserted-with-computer-guided-flapless-surgery-versus-conventional-dentures-a-5-year-multicenter-retrospective-analysis-and-ohip-questionnaire
#7
Roberto Marra, Alessandro Acocella, Rispoli Alessandra, Scott D Ganz, Andrea Blasi
OBJECTIVE: The purpose of this report is to compare satisfaction of patients rehabilitated with full-mouth fixed prostheses using computer-aided flapless implant placement and immediate loading with patients rehabilitated with conventional removable prostheses. MATERIALS AND METHODS: The study included 30 consecutive fully edentulous patients who received 312 implants and 30 matched controls treated with conventional removable prostheses. Mandible and maxilla were treated in the same surgical session with computer-guided flapless approach using NobelGuide protocol...
October 4, 2016: Implant Dentistry
https://www.readbyqxmd.com/read/27737356/impact-of-mandibular-conventional-denture-and-overdenture-on-quality-of-life-and-masticatory-efficiency
#8
Rachel Gomes Cardoso, Laércio Almeida de Melo, Gustavo Augusto Seabra Barbosa, Patrícia Dos Santos Calderon, Adriano Rocha Germano, Wilson Mestriner, Adriana da Fonte Porto Carreiro
The aim of this non-randomized controlled clinical trial was to evaluate the oral health-related quality of life and masticatory efficiency of patients rehabilitated with mandibular two-implant overdentures with immediate loading or conventional dentures. Fifty completely edentulous patients wearing bimaxillary conventional dentures, for at least one year, were recruited. The patients were then assigned to either two treatment groups: mandibular overdentures supported by two implants with bar-clip system and a maxillary conventional denture (n = 25), and new maxillary and mandibular conventional complete dentures (n = 25)...
October 10, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27677217/influence-of-implant-number-on-the-movement-of-mandibular-implant-overdentures
#9
Ken Oda, Manabu Kanazawa, Shin Takeshita, Shunsuke Minakuchi
STATEMENT OF PROBLEM: The rotational movement of an implant overdenture (IOD) has a negative effect on the perceived masticatory ability of the denture wearer. However, the influence of implant number on the movement of IODs has not been investigated. PURPOSE: The purpose of this in vitro study was to evaluate the denture movement of mandibular IODs anchored by different numbers of implants. MATERIAL AND METHODS: An edentulous mandibular test model with artificial mucosa and 5 experimental overdentures (N=5) was fabricated...
September 24, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27633403/immediate-loading-of-fixed-complete-denture-prosthesis-supported-by-4-8-implants-placed-using-guided-surgery-a-5-year-prospective-study-on-66-patients-with-356-implants
#10
Silvio Mario Meloni, Marco Tallarico, Milena Pisano, Erta Xhanari, Luigi Canullo
BACKGROUND: High primary implant stability is considered one of the main factors necessary for achieving predictable treatment outcomes with immediately loaded implant-supported screw-retained fixed complete denture prosthesis (FCDP). PURPOSE: To evaluate the 5-year clinical and radiographic outcomes of immediately loaded implants placed in edentulous patients using computer-assisted template-guided surgery to support a FCDP. MATERIALS & METHODS: Patients in need to be restored with a FCDP in the mandible or maxilla were included in this prospective study/ and treated using computer-assisted template-guided surgery...
September 15, 2016: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/27632258/retention-and-stability-of-implant-retained-mandibular-overdentures-using-different-types-of-resilient-attachments-an-in-vitro-study
#11
Moustafa Abdou ELsyad, Nora Nory Agha, Ahmed Ali Habib
PURPOSE: The aim of this study was to evaluate and compare the retention and stability of mandibular implant overdentures using different types of resilient attachments. MATERIALS AND METHODS: Two implant analogs were inserted in the canine areas of an acrylic edentulous mandibular model. A metal-reinforced experimental overdenture was constructed and connected to the implant analogs (on two occasions) using either resilient telescopic or Locator attachments. Locators were divided into three subgroups according to the degree of retention of the male nylon insert: Locator extra-light retention (blue insert), Locator light retention (pink insert), and Locator medium retention (transparent insert)...
September 2016: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/27621549/mandibular-kennedy-class-i-partial-denture-management-by-broad-stress-distribution-philosophy-radiographic-assessment
#12
Mohammed M Abd El-Khalik, Nesreen H El Mekawy, Sally S El-Kasaby
PURPOSE: The objective of this study was radiographic assessment of the premolar teeth abutments alveolar bone resorption in mandibular Kennedy Class I removable partial denture (RPD) utilizing the broad stress distribution philosophy, either designed with multiple circlet clasp or compound Aker clasp. MATERIALS AND METHODS: Twelve patients were enrolled for this study with upper completely edentulous arch against mandibular Kennedy Class I ridges posterior to the second premolar...
July 2016: Journal of Indian Prosthodontic Society
https://www.readbyqxmd.com/read/27611753/association-between-dentition-status-and-malnutrition-risk-in-serbian-elders
#13
Ivan Tanasić, Tijana Radaković, Ljiljana Tihaček Šojić, Aleksandra Milić Lemić, Ivan Soldatović
PURPOSE: The aim of this study was to find the correlation between the number, type, and placement of symmetric functional tooth units and the nutritional status using body mass index (BMI) and Mini Nutritional Assessment (MNA) in patients with both maxillary and mandibular removable partial dentures. MATERIALS AND METHODS: A randomized study was conducted at the Clinic for Prosthodontics, School of Dentistry, University of Belgrade, Serbia, followed by determination of number of functional tooth units...
September 2016: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/27598950/predictors-of-patient-satisfaction-with-removable-denture-renewal-a-pilot-study
#14
Stefanie Krausch-Hofmann, Line Cuypers, Anna Ivanova, Joke Duyck
PURPOSE: Conventional removable dentures still play an important role in the treatment of lost teeth. A thorough understanding of the parameters that influence patient satisfaction is useful for deciding whether denture replacement is meaningful. From a clinical perspective, factors that can be measured before starting treatment are relevant. This pilot study investigated whether patient satisfaction after denture renewal was affected by aspects related to the old prostheses, type of jaw, and patient motivation for denture renewal...
September 6, 2016: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/27589487/retentive-properties-of-o-ring-and-locator-attachments-for-implant-retained-maxillary-overdentures-an-in-vitro-study
#15
Moustafa Abdou ELsyad, Abdelsalam Amohamed Elhaddad, Ahmed Samir Khirallah
PURPOSE: To evaluate and compare retentive properties of O-ring and Locator attachments for implant-retained maxillary overdentures. MATERIALS AND METHODS: Four implant analogs were inserted in canine and second premolar areas of an acrylic edentulous maxillary model. A metal-reinforced experimental acrylic overdenture was constructed and connected to the analogs using either O-ring (group I) or Locator (group II) attachments. Locators were divided into 3 subgroups according the degree of retention of the patrix nylon insert: Locator extra-light retention (group IIa), Locator light retention (group IIb), and Locator medium retention (group IIc)...
September 2, 2016: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/27583529/tooth-implant-connection-in-removable-denture-a-review
#16
Dario Melilli, Giuseppe DAVì, Pietro Messina, Giuseppe A Scardina
When the patient cannot be rehabilitated with a fixed denture, or when he does not succeed in adapting to a traditional removable denture, a possible alternative solution consists in the use of a limited number of implants, placed in strategic positions in the arches of the patient, and subsequently connected to their residual teeth. The aim of this review is to evaluate the progress made on connections between teeth and implants in removable denture, to analyze their advantages and disadvantages and to compare the survival rate, both of the teeth and of the implants used as abutments, present in the various studies taken into examination, with the aim of being able to evaluate the effectiveness of this rehabilitative option...
September 1, 2016: Minerva Stomatologica
https://www.readbyqxmd.com/read/27519660/impact-of-radiotherapy-on-implant-based-prosthetic-rehabilitation-in-patients-with-head-and-neck-cancer-a-prospective-observational-study-on-implant-survival-and-quality-of-life-preliminary-results
#17
Tobias Ettl, Janet Weindler, Martin Gosau, Steffen Müller, Matthias Hautmann, Florian Zeman, Michael Koller, Dimitrios Papavasileiou, Ralf Bürgers, Oliver Driemel, Isabel Schneider, Christoph Klingelhöffer, Johannes Meier, Ulrich Wahlmann, Torsten E Reichert
PURPOSE: To study implant-based prosthetic rehabilitation of head and neck cancer patients with focus on implant survival and quality of life. MATERIALS AND METHODS: The prospective observational study presents preliminary results of 29 edentulous head neck cancer patients (20 patients after radiotherapy) with 165 OsseoSpeed implants. Implant success after 1-year follow-up was evaluated by means of the Albrektsson criteria. Quality of life was analysed with the EORTC QLQ-C30, QLQ-H&N35, and OHIP 14 questionnaires...
September 2016: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/27513785/rehabilitation-with-mandibular-implant-retained-complete-overdenture-using-the-association-of-two-retention-systems
#18
Victor Eduardo de Souza Batista, Fábio Roberto de Souza Batista, Aljomar José Vechiato-Filho, Cleidiel Aparecido de Araújo Lemos, Eduardo Piza Pellizzer, Fellippo Ramos Verri
This article reports a case of oral rehabilitation with two-implant-retained mandibular overdenture using bar/clip and ball attachment bilaterally on the distal side. A patient aged 69 years, fully edentulous, presented herself to private practice complaining about the instability of mandibular denture. Several possibilities of rehabilitation with advantages and disadvantages were explained to the patient, based in the clinical and radiograph examinations, and patient desire, in which she opted by conventional maxillary complete denture and two-implant-retained mandibular overdenture...
October 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27511875/surface-roughness-and-adaptation-of-different-materials-to-secure-implant-attachment-housings
#19
Serhat Emre Ozkir, Burak Yilmaz, Isin Kurkcuoglu, Ahmet Culhaoglu, Server Mutluay Unal
STATEMENT OF PROBLEM: Various materials are available to secure implant attachment housings in overdentures. Surface roughness and the adaptation of these materials to the denture base and the housings may increase the microcracks and bacterial adhesion at the interfaces in the long term. The surface characteristics of the interface between the denture base orientation material and the attachment housing have not been extensively studied. PURPOSE: The purpose of this in vitro study was to evaluate the surface roughness and the adaptation of 5 different housing orientation materials to the housings and the denture base...
August 7, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27496252/changes-in-biting-forces-with-implant-supported-overdenture-in-the-lower-jaw-a-comparison-between-conventional-and-mini-implants-in-a-pilot-study
#20
I Hasan, C Madarlis, L Keilig, C Dirk, A Weber, C Bourauel, F Heinemann
The biting ability of patients improves noticeably after receiving implant-supported overdentures in comparison to conventional complete dentures. However, the change of biting with such treatment concepts has been quantitatively investigated in only a limited number of studies. The aim of the present study has been to measure the biting forces of edentulous patients with complete dentures and after receiving implant-supported overdentures. A total of 26 edentulous patients were included. Ten patients received two to four conventional implants (control group, Ø3...
August 2, 2016: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
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