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https://www.readbyqxmd.com/read/28805255/mandibular-complete-denture-versus-single-implant-overdenture-a-systematic-review-of-patient-reported-outcomes
#1
REVIEW
Túlio Eduardo Nogueira, Danilo Rocha Dias, Cláudio Rodrigues Leles
The single-implant mandibular overdenture (SIMO) has been proposed as an alternative for edentulous patients who are poorly adapted to their dentures due to low retention and stability of the conventional mandibular complete denture (CD). However, there is a lack of evidence regarding the effectiveness of SIMO, which can be measured by examining patient perception of treatment effects. The aim of this systematic review was to assess the comparative results of CD and SIMO treatments by using patient-reported outcome measures...
August 14, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28708920/complications-and-clinical-considerations-of-the-implant-retained-zirconia-complete-arch-prosthesis-with-various-opposing-dentitions
#2
Jorge Gonzalez, Robert G Triplett
PURPOSE: To evaluate the performance of the implant-retained zirconia complete-arch prosthesis with various opposing dentitions. MATERIALS AND METHODS: The 40 patients included in this retrospective case series study were treated with one or two implant-retained zirconia complete-arch prostheses (ZIRCAP) using the Zirkonzahn protocol. Prettau zirconia frames were created with strategic cutbacks in the structure to extend zirconia incisal coverage of the esthetic anterior sextants and complete monolithic zirconia in the molar areas; subsequent layers of porcelain were applied to nonfunctional and esthetic areas...
July 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28708913/effect-of-attachment-type-on-denture-strain-in-maxillary-implant-overdentures-part-1-overdenture-with-palate
#3
Toshihito Takahashi, Tomoya Gonda, Yoshinobu Maeda
PURPOSE: This study examined the effects of attachments on strain in maxillary implant overdentures supported by two or four implants. MATERIALS AND METHODS: A maxillary edentulous model with implants inserted into anterior, premolar, and molar areas was fabricated, and three types of unsplinted attachments-ball, locator, and magnet-were set on the implants distributed under various conditions. Maxillary experimental dentures were fabricated, and two strain gauges were attached at the anterior midline on the labial and palatal sides...
July 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28702055/evaluation-of-sensibility-threshold-for-interocclusal-thickness-of-patients-wearing-complete-dentures
#4
Kujtim Sh Shala, Linda J Dula, Teuta Pustina-Krasniqi, Teuta Bicaj, Enis F Ahmedi, Zana Lila-Krasniqi, Arlinda Tmava-Dragusha
OBJECTIVE: The aim of this study was to evaluate sensibility threshold for interocclusal thickness in experienced and nonexperienced denture wearers after the insertion of new complete dentures. MATERIALS AND METHODS: A total of 88 patients with complete dentures have participated in this study. The research was divided into two experimental groups, compared with the previous experience prosthetic dental treatment. The sensibility threshold for interocclusal thickness was measured with metal foil with 8 μm thickness and width of 8 mm, placed between the upper and lower incisor region...
2017: International Journal of Dentistry
https://www.readbyqxmd.com/read/28650517/adaptive-change-in-chewing-related-brain-activity-while-wearing-a-palatal-plate-an-fmri-study
#5
Yuka Inamochi, Kenji Fueki, Nobuo Usui, Masato Taira, Noriyuki Wakabayashi
Prosthodontic treatment success depends on patients' ability to adapt to an altered oral environment containing removable prostheses. We investigated adaptive chewing-related brain activity changes in response to a new oral environment. Twenty-eight fully dentate subjects (mean age: 28.6 years) wore experimental denture-base palatal plates (3-mm thick), for 7 days. We measured food mixing ability and cycle time, and assessed brain activity by functional magnetic resonance imaging during chewing at pre-insertion (Day 0), and immediately (Day 1), 3 days (Day 3), and 7 days (Day 7) after insertion...
June 26, 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/28621288/photodvnamic-therapy-in-endodontics
#6
Zahed Mohammadi, Hamid Jafarzadeh, Sousan Shalavi, Jun-Ichiro Kinoshita
Commonly used irrigants do not always eradicate the entire microbial flora in infected root canals. Therefore, several other strategies, such as photodynamic therapy (PDT) have been developed. Photoactivated disinfection is based on the interaction of a photosensitive antibacterial agent and a light source. It uses a nontoxic dye named photosensitizer (PS) and low-intensity visible light. In oxygen presentation, these combine to produce some cytotoxic species. The PS molecules attach to bacteria membrane. Irradiation with a specific wavelength of the light may lead to the production of singlet oxygen, resulting in rupture of the microbial cell wall...
June 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28584424/two-piece-obturator-using-lock-and-key-mechanism
#7
Prema Sukumaran, Michael R Fenlon
This paper describes a method used for the fabrication of a two-piece denture obturator for a patient who had surgical removal of the premaxilla due to squamous cell carcinoma. The patient had been wearing a two-piece obturator but encountered difficulty in inserting the prosthesis. In this case report, a lock-and-key mechanism was used to easily assemble the two-piece prosthesis intraorally. A keyhole was designed on the obturator to act as the lock while the denture was used as the key that fitted into the keyhole...
April 2017: Journal of Indian Prosthodontic Society
https://www.readbyqxmd.com/read/28512551/consensus-statements-and-clinical-recommendations-on-treatment-indications-surgical-procedures-prosthetic-protocols-and-complications-following-all-on-4-standard-treatment-9th-mozo-grau-ticare-conference-in-quintanilla-spain
#8
REVIEW
Miguel Penarrocha-Diago, María Penarrocha-Diago, Regino Zaragozí-Alonso, David Soto-Penaloza, Meeting On Behalf Of The Ticare Consensus
OBJECTIVES: The present consensus report critically evaluates the scientific evidence based on a comprehensive systematic review of the All-On-4 treatment concept, focusing primarily on the treatment indications, surgical procedures and prosthetic protocols, and secondarily on the mechanical and biological complications involved. MATERIAL AND METHODS: A systematic review was made in advance of the meeting. Consensus statements, treatment guidelines and recommendations for future research were based on within-group as well as plenary debates and discussions of the systematic review...
May 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28510376/one-piece-implant-retained-mandibular-overdentures-by-pre-fabricated-titanium-telescopic-attachments-and-frictional-varnish-a-two-year-prospective-study
#9
Shahram Namjoy Nik, Touraj Nejatian
Clinical efficiency of one-piece screw-type implants with telescopic were attachments evaluated in this study. Twenty-four patients received a mandibular implant-supported overdenture and maxillary complete denture. Ninety-six one-piece implants were inserted in the inter-foraminal area. Implants were immediately loaded with an implant-retained overdenture and telescopic attachments which had frictional retention elements. There was 0.25±0.24 mm, 0.32±0.25 mm, 0.43±0.30 mm, 0.61±0.30 mm and of bone resorption after 3, 6, 12 and 24 months, respectively...
December 2016: European Journal of Prosthodontics and Restorative Dentistry
https://www.readbyqxmd.com/read/28501879/-implant-supported-3d-printed-bridge-in-the-edentulous-maxilla
#10
F A J Gols Linthorst, L Verhamme, T Maal, A Soehardi, G J Meijer
A healthy 72-year-old man presented with retention problems concerning the dentures in his maxilla. On account of extreme resorption, placement of implants without prior bone augmentation was not an option. The proposal was to use autologous bone harvested from the iliac crest. After a healing period of 4 months, a cone beam computed tomography scan was made, following which the virtual implant planning of 6 implants was carried out. With the help of a template supported by osteosynthesis screws, which had already been inserted during the augmentation procedure, the plan was applied to the patient...
May 2017: Nederlands Tijdschrift Voor Tandheelkunde
https://www.readbyqxmd.com/read/28486353/vertical-and-horizontal-crestal-bone-levels-in-root-analog-stepped-implants-a-10-year-prospective-study
#11
Germán Gómez-Román, Stefan Rombach
PURPOSE: The aim of this study was to evaluate bone levels with root-analog stepped implants by radiographic analysis over a 10-year period. MATERIALS AND METHODS: One hundred fifty-three implants placed in 93 patients were examined after 10-year follow-up. The implant diameters were 3.8 to 6.5 millimeters (mm), whereas the lengths were 10 to 15 millimeters (mm). One hundred seven implants were restored with single crowns or fixed partial dentures, 46 with bar or ball-retained overdentures...
August 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28473930/full-mouth-reconstruction-of-a-skeletal-class-ii-division-1-patient-with-adenoid-cystic-carcinoma-using-an-interim-immediate-obturator-and-a-definitive-obturator
#12
Mehran Bahrami, Seyed Mehran Falahchai
A 61-year-old female patient with adenoid cystic carcinoma (ACC) of the right maxilla and Angle class II division 1 malocclusion had received a subtotal maxillectomy in right side and used a conventional clasp-retained obturator. After implants placement, a maxillary interim immediate obturator (IIO) and then a definitive obturator using six endosseous implants were fabricated. During one-year follow-up, the patient was completely satisfied. Ideally, after implants placement in edentulous patients suffering from hemimaxillectomy, an implant-supported obturator (ISO) is designed in order to prevent nasal reflux and to improve speech and swallowing...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28411886/interference-factors-regarding-the-path-of-insertion-of-rotational-path-removable-partial-dentures
#13
Chan-Te Huang, Fang-Chun Liu, Kwing-Chi Luk
BACKGROUND: The aims of this study were to evaluate the effect of the location of the rotational center and the morphology of teeth resulting in interference with the rotational path of insertion and to estimate when an interference test should be performed. METHODS: A total of 400 dental radiograms of maxillary and mandibular first and second molars (100 for each position) were selected. The radiograms were used to hand-sketch the outlines on tracing paper. Then, an interference test was simulated using calipers...
February 2017: Biomedical Journal
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
#14
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/28387982/putty-index-for-tripoding
#15
A S Afsal, Shyammohan Aravindakshan, Sebastian Thomas, Najma Musthafa, Shahin Ismail
Precise orientation and transfer of the selected path of insertion and removal is a critical step in cast removable partial denture prosthesis design. An easy technique for registering the same is described using addition silicon putty and a used diamond disk.
April 7, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28385436/influence-of-a-removable-prosthesis-on-oral-health-related-quality-of-life-and-mastication-in-elders-with-parkinson-disease
#16
Giselle R Ribeiro, Camila H Campos, Renata Cunha Matheus Rodrigues Garcia
STATEMENT OF PROBLEM: Parkinson disease (PD) symptoms, such as muscle rigidity, tremors in the lips and tongue, and involuntary mandibular movements, may cause oral health-related problems, mastication difficulties, and denture discomfort because of the difficulty in controlling a prosthesis with the oral musculature. PURPOSE: The purpose of this observational clinical study was to evaluate the influence of oral rehabilitation with a removable prosthesis on oral health-related quality of life (OHRQoL) and masticatory efficiency (ME) in elders with PD...
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
#17
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/28332067/preoperative-chronic-sinusitis-as-significant-cause-of-postoperative-infection-and-implant-loss-after-sinus-augmentation-from-a-lateral-approach
#18
Ayako Kozuma, Masanori Sasaki, Katsuhiro Seki, Takeshi Toyoshima, Hiroyuki Nakano, Yoshihide Mori
OBJECTIVES: Among intra/postoperative complications of sinus augmentation from a lateral approach, postoperative infection and implant loss are particularly important because they have irreversible consequences. The purpose of this study was to determine the causes of postoperative infection and implant loss after a lateral approach and to determine the appropriate prophylaxis and therapy. MATERIALS AND METHODS: In total, 109 patients (121 sinuses, 252 implants) were included in this study...
June 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28326708/-evaluation-of-electromyogram-activity-and-masticatory-efficiency-in-edentulous-individuals-whose-maxillomandibular-horizontal-relationship-records-were-obtained-with-three-different-methods
#19
Liu Cuiling, Yang Liyuan, Zheng Zheng, Gao Xu
OBJECTIVE: This study was performed to investigate the electromyographic (EMG) activity of the masseter muscle and the anterior temporalis muscle, as well as the masticatory efficiency after insertion of the dentures in edentulous individuals whose maxillomandibular horizontal relationship records were obtained with three different methods. METHODS: Ten edentulous individuals were enrolled in this study. Three types of complete dentures for these 10 edentulous patients were made according to their different maxillomandibular horizontal relationship records...
October 1, 2016: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28319208/posterior-mandibular-ridge-resorption-associated-with-different-retentive-systems-for-overdentures-a-7-year-retrospective-preliminary-study
#20
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)...
May 2017: International Journal of Prosthodontics
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