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https://www.readbyqxmd.com/read/29235192/influence-of-implant-position-in-implant-assisted-removable-partial-denture-a-three-dimensional-finite-element-analysis
#1
Octavi Ortiz-Puigpelat, Aida Lázaro-Abdulkarim, Javier-María de Medrano-Reñé, Jordi Gargallo-Albiol, Josep Cabratosa-Termes, Federico Hernández-Alfaro
PURPOSE: To determine the ideal position of a dental implant to assist a posterior extended partial removable dental prosthesis (PRDP), through stress values, displacement values, and deformation of periodontal ligament (PDL). MATERIALS AND METHODS: A finite element analysis of different implant positions was analyzed using a 3D mandible model from a human patient. Test models were created: model A (implant in second molar area), model B (implant in the first molar area), and model C (implant in premolar area)...
December 13, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29233132/intraoral-scanners-in-dentistry-a-review-of-the-current-literature
#2
Francesco Mangano, Andrea Gandolfi, Giuseppe Luongo, Silvia Logozzo
BACKGROUND: Intraoral scanners (IOS) are devices for capturing direct optical impressions in dentistry. The purpose of this narrative review on the use of IOS was to: (1) identify the advantages/disadvantages of using optical impressions compared to conventional impressions; (2) investigate if optical impressions are as accurate as conventional impressions; (3) evaluate the differences between the IOS currently available commercially; (4) determine the current clinical applications/limitations in the use of IOS...
December 12, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/29195820/modified-retention-and-stability-criteria-for-complete-denture-wearers-a-risk-assessment-tool-for-impaired-masticatory-ability-and-oral-health-related-quality-of-life
#3
Nareudee Limpuangthip, Tewarit Somkotra, Mansuang Arksornnukit
STATEMENT OF PROBLEM: Some complete denture wearers report difficulty with daily activities, especially activities related to denture retention and stability. However, no standard criteria are available for professionally based assessment of complete denture quality. PURPOSE: The purpose of this clinical study was to determine the association between professionally based assessment of complete denture quality, evaluated by conventional and Chulalongkorn University (CU)-modified Kapur criteria and multiple patient-based outcomes: oral health-related quality of life (OHRQoL), eating satisfaction, and masticatory performance...
November 29, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29195814/single-arch-digital-removable-complete-denture-a-workflow-that-starts-from-the-intraoral-scan
#4
Lucio Lo Russo, Angelo Salamini
The production of removable dentures from intraoral scans has been problematic. In addition, the digital design and fabrication of a single-arch denture cannot be routinely managed. The workflow presented provides a proof of concept that an optical intraoral scan of the edentulous maxilla is feasible and that a functional single-arch maxillary denture can be designed and fabricated using a digital protocol.
November 29, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29188695/an-implant-retained-obturator-%C3%A2-a-case-study
#5
James Puryer, Claire Forbes-Haley
This case describes the oral rehabilitation of a patient following maxillary hemi-section due to squamous cell carcinoma of the palate. Planned treatment was construction of a maxillary implant-supported obturator. Two dental implants were placed in his maxilla to aid the support and retention of an obturator. However, owing to bone availability, their angulation was suboptimal and compromised the retention of the obturator. This case describes alternative implant attachments to aid the retention and stability of implant-retained dentures constructed in cases with suboptimal implant placement...
May 2017: Dental Update
https://www.readbyqxmd.com/read/29163661/ultrasound-guided-removal-of-hypopharyngeal-foreign-body-in-the-emergency-department
#6
Nadia Maria Shaukat, Alexis Lenz, Poonam Desai
Foreign body impaction at the cricopharyngeal level can be a life-threatening emergency. While traditionally, removal of these is performed in the operating room setting, patients with relatively unstable airways or significant discomfort may require immediate extraction to prevent further injury. This is the case of an 85-year-old man who presented to the emergency department in significant discomfort following aspiration of a large partial denture. We report here the first known use of ultrasound in an emergent airway situation to rapidly localize and retrieve an aspirated foreign body...
November 2017: Ultrasound: Journal of the British Medical Ultrasound Society
https://www.readbyqxmd.com/read/29143451/using-intraoral-scanning-technology-for-three-dimensional-printing-of-kennedy-class-i-removable-partial-denture-metal-framework-a-clinical-report
#7
Feng Hu, Zhenhua Pei, Ying Wen
Removable partial dentures (RPDs) are used to restore missing teeth and are traditionally fabricated using the lost-wax casting technique. The casting process is arduous, time-consuming, and requires a skilled technician. The development of intraoral scanning and 3D printing technology has made rapid prototyping of the RPD more achievable. This article reports a completed case of direct fabrication of a maxillary RPD metal framework (Kennedy Class I) using intraoral scanning and 3D printing techniques. Acceptable fit and satisfactory clinical outcome were demonstrated...
November 16, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29143403/effect-of-distal-implant-inclination-on-dislodging-forces-of-different-locator-attachments-used-for-mandibular-overdentures-an-in-vitro-study
#8
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
https://www.readbyqxmd.com/read/29140379/seven-year-follow-up-of-full-arch-prostheses-supported-by-four-implants-a-prospective-study
#9
Karen Vaz Ayub, Eduardo Antônio Ayub, Accácio Lins do Valle, Gerson Bonfante, Thiago Pegoraro, Luiz Fernando
PURPOSE: To evaluate biologic and prosthetic outcomes of implant-supported mandibular full-arch fixed prostheses treated with the All-on-4 treatment concept after 7 years. MATERIALS AND METHODS: Patients were selected to receive full-arch fixed immediate prostheses supported by four implants up to 72 hours after surgery. The following biologic aspects were evaluated: Plaque Index (PI) and Bleeding Index (BI), implant stability by resonance frequency, and marginal bone loss (MBL) measured with the aid of periapical radiographs...
November 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29132738/impact-of-implant-supported-prostheses-on-nutritional-status-and-oral-health-perception-in-edentulous-patients
#10
Nada El Osta, Lana El Osta, Farah Moukaddem, Tatiana Papazian, Robert Saad, Martine Hennequin, Lydia Rabbaa Khabbaz
BACKGROUND & AIMS: Improvement of nutritional status and perception of oral health are supposed to be different with complete conventional denture or implant-supported fixed or removable prostheses. Since no study has been conducted in Lebanon, the aim of our study was to assess the nutritional status and oral heath related quality of life (OHRQoL) in totally edentulous patients after treatment with complete denture or implant supported-prostheses. MATERIAL AND METHODS: This was an observational clinical prospective study...
April 2017: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/29128693/effect-of-adding-support-structures-for-overhanging-part-on-fatigue-strength-in-selective-laser-melting
#11
Yuka Kajima, Atsushi Takaichi, Takayuki Nakamoto, Takahiro Kimura, Nuttaphon Kittikundecha, Yusuke Tsutsumi, Naoyuki Nomura, Akira Kawasaki, Hidekazu Takahashi, Takao Hanawa, Noriyuki Wakabayashi
Selective laser melting (SLM) technology was recently introduced to fabricate dental prostheses. However, the fatigue strength of clasps in removable partial dentures prepared by SLM still requires improvement. In this study, we attempted to improve the fatigue strength of clasps by adding support structures for overhanging parts, which can generally be manufactured at an angle to be self-supporting. The results show that the fatigue strength of the supported specimens was more than twice that of unsupported specimens...
November 6, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29120113/hygiene-practices-in-removable-prosthodontics-a-systematic-review
#12
REVIEW
S Papadiochou, G Polyzois
OBJECTIVE: To systematically review the recent scientific evidence about the hygiene practices of removable prostheses relative to the effectiveness, colour and dimensional stability. This review aimed also to identify patients' attitudes and habits towards denture hygiene. METHODS: Three electronic databases (MEDLINE/PubMed, Scopus and Cochrane Library) were screened, in English language, between January 1995 and December 2016. A supplementary hand search in the reference list of the identified articles was also performed...
November 9, 2017: International Journal of Dental Hygiene
https://www.readbyqxmd.com/read/29114429/sectional-mandibular-complete-denture-for-a-total-maxillectomy-patient-with-trismus-a-clinical-report
#13
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
https://www.readbyqxmd.com/read/29104691/complete-dentures-fabricated-with-cad-cam-technology-and-a-traditional-clinical-recording-method
#14
Nadica Janeva, Gordana Kovacevska, Edvard Janev
The introduction of computer-aided design/computer-aided manufacturing (CAD/CAM) technology into complete denture (CD) fabrication ushered in a new era in removable prosthodontics. Commercially available CAD/CAM denture systems are expected to improve upon the disadvantages associated with conventional fabrication. The purpose of this report is to present the workflow involved in fabricating a CD with a traditional clinical recording method and CAD/CAM technology and to summarize the advantages to the dental practitioner and the patient...
October 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29102734/colonoscopic-removal-of-a-denture-migrated-in-the-appendix
#15
Kazuki Ikeda, Takefumi Nakamura, Suguru Uose, Hitoshi Someda, Tsutomu Chiba
No abstract text is available yet for this article.
November 1, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/29101546/retention-force-of-removable-partial-dentures-with-different-double-crowns
#16
Christin Arnold, Jeremias Hey, Jürgen M Setz, Arne F Boeckler, Ramona Schweyen
OBJECTIVES: The aim of the study was to compare the retentive behaviors of double crowns with different designs and material compositions before and after artificial aging. MATERIALS AND METHODS: Six pairs of double crowns were fabricated: telescopic crowns 0° made of high-noble metal (group A) or non-precious metal (group B), telescopic zirconia copings with secondary crowns made of electroplated gold 2° (group C), crowns with friction pins 2° made of non-precious metal (group D) or zirconia (group E), and conical crowns 6° made of high-noble metal (group F)...
November 3, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29098745/prosthodontic-management-of-a-patient-with-moebius-syndrome-a-clinical-report
#17
Ahmed Mahrous, Ghadeer Thalji
Moebius/Mӧbius Syndrome (MS) is an extremely rare congenital disorder characterized by uni- or bilateral palsy of the abducens (VI) and the facial (VII) nerves, causing facial paralysis. Dysfunction of cranial nerves III through XII is common, most often the glossopharyngeal (IX) and hypoglossus (XII). Afflicted individuals seeking prosthodontic care, particularly removable prosthetics, present multiple challenges related to inherent facial and tongue muscle weakness and microstomia. Other extraoral anomalies may include congenital multiple arthrogryposis and malformations of the upper and lower limbs...
November 3, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29084302/comparison-of-masticatory-and-swallowing-functional-outcomes-in-surgically-and-prosthetically-rehabilitated-maxillectomy-patients
#18
R Sreeraj, Vinod Krishnan, Manju V, Krishnakumar Thankappan
PURPOSE: This study compared masticatory and swallowing functional outcomes in maxillectomy patients who underwent surgical and prosthetic rehabilitation or prosthetic rehabilitation only following surgical resection. MATERIALS AND METHODS: This comparative cross-sectional study involved 20 maxillectomy patients and compared their masticatory and swallowing functions following combined surgical and prosthodontic management vs an exclusively prosthodontic approach...
November 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/29084296/a-protocol-for-screw-retrievable-cement-retained-implant-supported-fixed-partial-dentures
#19
Abdulaziz AlHelal, Mathew T Kattadiyil, Bader AlBader, Jefferson L Clark
Longevity of implant-supported fixed partial dentures (ISFPDs) may be associated with multiple clinical complications, irrespective of whether retention is achieved via screws or cement. While use of screws ensures ease of prosthesis retrievability and elimination of the inherently risky cementation process, more mechanical strains are induced in this design. A combined screw-retrievable and cement-retained ISFPD is designed to achieve the best passive fit and strain reduction while allowing complete excess cement removal and maintaining ease of retrievability...
November 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/29082902/comparison-of-patient-satisfaction-with-acrylic-and-flexible-partial-dentures
#20
Clara Arianta Akinyamoju, Tunde Joshua Ogunrinde, Juliana Obontu Taiwo, Oluwole Oyekunle Dosumu
PURPOSE: Restoration of partial edentulous mouth may be done using a variety of treatment options. Removable partial denture (RPD) is commonly used because of its availability. RPDs from flexible resins unlike those from acrylic engage hard and soft tissue undercuts and feel more comfortable in the mouth. The aim of the study was to compare satisfaction with dentures made from these two types of materials. MATERIALS AND METHODS: It was a quasi-experimental study among thirty patients at the Prosthetics Clinic, University College Hospital, Ibadan...
July 2017: Nigerian Postgraduate Medical Journal
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