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https://www.readbyqxmd.com/read/28440024/immediate-and-delayed-loading-of-two-piece-reduced-diameter-implants-with-locator-analog-attachments-in-edentulous-mandibles-one-year-results-from-a-randomized-clinical-trial-examining-clinical-outcome-and-patient-expectation
#1
Nikolaos Nikitas Giannakopoulos, Kirsten Ariaans, Lydia Eberhard, Anna-Luisa Klotz, Keunyoung Oh, Stefanie Kappel
BACKGROUND: Prosthetic management of thin alveolar ridges in the edentulous mandibles of elderly patients, especially the time of loading, the number of implants needed, and patient expectations and perception, is a challenge in implant dentistry. PURPOSE: Survival of conventionally and immediately loaded 2-piece reduced-diameter implants in the interforaminal region of the edentulous mandible supporting locator-analog attachments was evaluated. Prosthetic complications and peri-implant hygiene were also studied, and patient expectation and subjective evaluation of the treatment were documented...
April 24, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28403248/effect-of-buccal-implant-inclination-on-stresses-around-two-implant-retained-overdentures-with-resilient-stud-attachments
#2
Moustafa Abdou Elsyad, Karima Salah Abid, Elsayed Abd Elkhalek
PURPOSE: This study aimed to evaluate the effect of buccal implant inclination on stresses around two-implant-retained overdentures with resilient stud attachments. MATERIALS AND METHODS: Four acrylic models representing a mandibular edentulous ridge were constructed. For each model, two implants were placed at canine areas. Models were classified into four types according to the degree of buccal implant inclination: Group I (GI, 0 degrees), Group II (GII, 10 degrees), Group III (GIII, 20 degrees), and Group IV (GIV, 30 degrees)...
April 12, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28396807/fabricating-cad-cam-implant-retained-mandibular-bar-overdentures-a-clinical-and-technical-overview
#3
Chui Ling Goo, Keson Beng Choon Tan
This report describes the clinical and technical aspects in the oral rehabilitation of an edentulous patient with knife-edge ridge at the mandibular anterior edentulous region, using implant-retained overdentures. The application of computer-aided design and computer-aided manufacturing (CAD/CAM) in the fabrication of the overdenture framework simplifies the laboratory process of the implant prostheses. The Nobel Procera CAD/CAM System was utilised to produce a lightweight titanium overdenture bar with locator attachments...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28396001/creating-durable-and-esthetic-gingival-anatomy-on-a-polyoxymethylene-overdenture-by-using-a-chairside-procedure
#4
Gary R Login
BACKGROUND AND OVERVIEW: Snap-On Smile (DenMat) appliances are tooth-borne overdentures used for a variety of temporary esthetic applications. However, their benefit can be limited in patients with high smile lines and altered gingival architecture because the teeth look too large. CASE DESCRIPTION: In this report, the author shows the chairside application of a silicone denture reline material used to recreate gingival anatomy on an overdenture fabricated from crystallized acetyl resin, the material used in a Snap-On Smile appliance...
April 7, 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/28389025/the-effect-of-2-versus-4-implants-on-implant-stability-in-mandibular-overdentures-a-randomized-controlled-trial
#5
Wafa'a R Al-Magaleh, Amal A Swelem, Iman A W Radi
STATEMENT OF PROBLEM: Dental research is rich with articles that investigated the influence of host-site variables, some implant-related variables (implant length, diameter, taper, design, location, and surface topography), different loading protocols or surgical procedures, and measurement methodology on dental implant stability. However, the number of implants and its effect on implant stability remain unclear. PURPOSE: The purpose of this randomized clinical trial was to investigate the influence of implant number on implant stability by comparing 2 versus 4 implants in mandibular implant overdentures...
April 4, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28387994/locator-versus-bar-attachment-effect-on-the-retention-and-stability-of-implant-retained-maxillary-overdenture-an-in-vitro-study
#6
Moustafa Abdou ELsyad, Mahmoud Abdehamid Dayekh, Ahmed Khalifa Khalifa
PURPOSE: To compare retention and stability of Locator and bar attachments for implant-retained maxillary overdentures. MATERIALS AND METHODS: Four implants were inserted into a maxillary acrylic resin model in canines and second premolar areas. Experimental overdentures were connected to the implants with bar (group I) or Locator (group II) attachments. Locators were divided into 3 subgroups according the degree of retention of the patrix nylon insert: Locator blue (group IIa), Locator pink (group IIb), and Locator transparent (group IIc)...
April 7, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28385441/prosthetic-maintenance-of-different-mandibular-implant-overdentures-a-systematic-review
#7
REVIEW
André Assaf, Marwan Daas, Adeline Boittin, Nicolas Eid, Michel Postaire
STATEMENT OF PROBLEM: Different factors can affect prosthetic maintenance requirements for mandibular implant overdentures (IODs). However, the literature shows a high level of disagreement concerning the effect of each factor on maintenance needs. PURPOSE: The purpose of this systematic review was to address the focus question: "In the clinical studies published since 2004 of adult patients with totally edentulous mandibles treated by IODs with a variable number of implants and different designs, what were the maintenance types, frequencies, and complications?" MATERIAL AND METHODS: A search of MEDLINE and PubMed databases was performed targeting papers in English on prosthetic maintenance of mandibular IODs published between 2004 and June 2015, aiming at recognizing the needs for adjustment, repair, and renewal...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385440/quality-of-life-assessment-of-implant-retained-overdentures-and-fixed-metal-acrylic-resin-prostheses-in-patients-with-marginal-mandibulectomy
#8
Banu Karayazgan-Saracoglu, Arzu Atay, Cumhur Korkmaz, Yumushan Gunay
STATEMENT OF PROBLEM: Several factors affect the prosthetic outcome of patients with mandibular defects. However, it is questionable whether fixed or removable implant-supported prostheses meet the expectations and satisfaction of the patients. The perspectives of these patients are important in managing the prosthetic treatment strategies. PURPOSE: The purpose of this prospective clinical study was to evaluate the satisfaction and oral health-related quality of life of patients with marginal mandibulectomies with implant-retained overdentures and fixed metal-acrylic resin prostheses...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28385432/effect-of-different-housing-retaining-materials-on-the-flexural-strength-of-an-acrylic-resin-overdenture-base
#9
Serhat Emre Ozkir, Burak Yilmaz
STATEMENT OF PROBLEM: An attachment housing inside an overdenture may weaken the acrylic resin base. The type of housing retaining material may affect the strength of the housing retaining material-acrylic resin base assembly. The effect of different housing retaining materials on the strength of acrylic resin base is unknown. PURPOSE: The purpose of this in vitro study was to evaluate the effects of different materials used to retain the housing on the flexural strength of a poly(methyl methacrylate) (PMMA) resin base...
April 3, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28355313/short-term-quality-of-life-change-perceived-by-patients-after-transition-to-mandibular-overdentures
#10
Lara Maria Herrera, Raíssa Ananda Paim Strapasson, Luiz Eugênio Nigro Mazzilli, Rodolfo Francisco Haltenhoff Melani
Palatal rugae patterns are anatomic structures considered unique to each person. Monozygotic twins present similarities, however, Rugoscopy in particular, may contribute to their individualization for forensic purposes. The aims of this study were: to study the palatal rugae classifications of Briñón; to propose improvements to facilitate use of this method, if pertinent; and to characterize palatal rugae in a sample of Brazilian monozygotic twins and singletons. Precise reproducibility of the two methods of Briñón, from 1982 and 2011, was prevented by poor intra-examiner agreement (70% and 13% respectively)...
March 27, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/28319216/influence-of-implant-number-and-location-on-strain-around-an-implant-combined-with-force-transferred-to-the-palate-in-maxillary-overdentures
#11
Tsung-Chieh Yang, Yi-Chen Chen, Tong-Mei Wang, Li-Deh Lin
This study evaluated the effect of implant number and location on strain around the implant and force transferred to the palate in maxillary implant overdentures (IODs), including two locators attached bilaterally in the canine region (IOD 2), four locators attached bilaterally in the canine and premolar regions (IOD 4CP), four locators attached bilaterally in the canine and molar regions (IOD 4CM), and six locators attached bilaterally in the canine, premolar, and molar regions (IOD 6). As the implant number increased, strain around the implant regions increased, whereas force transferred to the palate decreased under loading...
March 20, 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28319215/number-and-location-of-mini-implants-retaining-a-mandibular-overdenture-to-resist-lateral-forces-a-preliminary-in-vitro-study
#12
Kyozo Takagaki, Tomoya Gonda, Yoshinobu Maeda
PURPOSE: The aim of this study was to determine the optimal number and location of mini-implants retaining an overdenture to resist lateral forces. MATERIALS AND METHODS: A strain gauge was attached to a mini-implant and placed in an edentulous mandible model. The following different implant locations were evaluated: one mini-implant at the midline, two mini-implants in the lateral incisor regions, two mini-implants in the canine regions, and four mini-implants...
March 20, 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28319214/fabrication-of-a-mandibular-implant-supported-overdenture-with-a-new-attachment-system-a-review-of-current-attachment-systems
#13
Karnik Shah, Burak Yilmaz, Edwin McGlumphy
Since their introduction, implant-retained overdentures have represented a feasible, economical, and highly successful treatment option for completely edentulous patients. Different attachment systems have been effectively used to retain these implant overdentures, and each system has advantages and disadvantages. Locator attachment (Zest Anchors) is one system that has been widely used by clinicians, particularly, for two-implant-supported situations. Recently, Zest Anchors developed a new locator-style abutment, Locator R-Tx...
March 20, 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28319212/treatment-outcomes-for-mandibular-mini-implant-retained-overdentures-a-systematic-review
#14
Jin-Hong Park, Jeong-Yol Lee, Sang-Wan Shin
PURPOSE: This systematic review evaluated treatment outcomes for mandibular mini-implant-retained overdentures (MMIOs) in terms of (1) implant survival rate, (2) peri-implant marginal bone loss, (3) prosthodontic maintenance and complication occurrence, and (4) patient satisfaction. MATERIALS AND METHODS: Pertinent literature published in English before October 12, 2015 was identified using a MEDLINE and EMBASE search strategy and hand searching of relevant journals...
March 20, 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28319208/posterior-mandibular-ridge-resorption-associated-with-different-retentive-systems-for-overdentures-a-7-year-retrospective-preliminary-study
#15
Moustafa Abdou Elsyad, Shahinaz Sayed Mohamed, Ahmad Fathalla Shawky
PURPOSE: This retrospective study compared posterior mandibular residual ridge resorption with two different retentive mechanisms for overdentures after 7 years. MATERIALS AND METHODS: A convenience sample of 18 edentulous men was assigned to one of two equal groups. Two implants were placed in the mandibular canine areas for each patient using the conventional two-stage surgical protocol, and the implants were splinted with a round bar 3 months later. New mandibular overdentures were then connected to the bars with clips (clip-retained overdentures, CR group) or resilient liners (resilient liner-retained overdentures, RR group)...
March 20, 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28319205/support-ratio-between-abutment-and-soft-tissue-under-overdentures-a-comparison-between-use-of-two-and-four-abutments
#16
Manami Abe, Tsung-Chieh Yang, Yoshionobu Maeda, Takanori Ando, Masahiro Wada
PURPOSE: The purpose of this preliminary in vivo study was to compare force distribution on abutments (tooth or implant) and tissues supporting overdentures with two or four abutments. MATERIALS AND METHODS: A convenience sample of five subjects with tooth and/or implant-supported overdentures was enrolled. Recordings were completed on each subject using a force-measuring system mounted on a metal framework with four anteroposterior spread abutments (A), four abutments with denture bases (B), and on two anterior abutments with denture bases (C)...
March 20, 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28314082/an-international-survey-among-prosthodontists-of-the-use-of-mandibular-implant-supported-dental-prostheses
#17
Mats Kronstrom, Gunnar E Carlsson
PURPOSE: To evaluate the use of implant-supported overdentures (IOD) and implant-supported fixed dental prostheses (IFDP) in patients with edentulous mandibles among international prosthodontists. MATERIALS AND METHODS: A questionnaire was sent by e-mail to all clinically active prosthodontists in the International College of Prosthodontists with questions related to implant treatment of the edentulous mandible performed in 2015. RESULTS: One hundred and sixteen prosthodontists from 33 countries responded to the questionnaire...
March 17, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28299262/success-rate-in-implant-supported-overdenture-and-implant-supported-fixed-denture-in-cleft-lip-and-palate-patients
#18
Jaine Zanolla, Flávio Monteiro Amado, Willian Saranholi da Silva, Bruno Ayub, Ana Lúcia Pompéia Fraga de Almeida, Simone Soares
BACKGROUND: The prosthetic treatment in cleft patients is challenging. Based on this, the aim of this study was to evaluate the longevity of prosthetic rehabilitation treatment with implant-supported overdenture (IOD) and implant-supported fixed denture (IFD) in cleft lip and palate patients in a period of 22 years. MATERIALS AND METHODS: The medical records of 72 patients were analyzed (29 males and 43 females), and the survival rate of the implants was evaluated...
July 2016: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28295492/association-between-occlusal-force-distribution-in-implant-overdenture-prostheses-and-residual-ridge-resorption
#19
Tameem Khuder, Norsiah Yunus, Eshamsul Sulaiman, Mohd Masood, Norliza Ibrahim, Taimur Khalid
BACKGROUND: This study aimed to compare residual ridge resorption (RRR) of anterior and posterior maxillary and mandibular edentulous ridges, in patients treated with mandibular implant overdentures (IOD) and compare with conventional complete dentures (CD), and to determine at each location, the association of RRR with the occlusal forces distribution and other patients' variables. METHODS: The anterior and posterior RRR of IOD (6 males, 17 females) and CD (12 males, 11 females) were determined using baseline and follow-up dental panaromic radiographs (DPT), (mean intervals 4±1...
March 10, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28293321/bone-height-changes-of-the-mandibular-edentulous-ridge-in-screw-retained-versus-telescopic-restorations-for-completely-edentulous-patients
#20
Eman Helal, Mohamed El-Zawahry, Ayman Gouda, Amr Hosny Elkhadem, Samira Ibrahim Ibrahim
AIM: This study was established to evaluate the amount of bone height changes in the posterior mandibular area of edentulous patients receiving screw-retained prostheses versus removable telescopic implant overdentures. MATERIAL AND METHODS: Every patient received four inter-foraminal implants regarding the mandibular arch and four anterior implants for the maxillary arch, computer guided surgical guides were planned for the insertion of the implants accurately with a flapless technique...
March 15, 2017: Open Access Macedonian Journal of Medical Sciences
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