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International Journal of Prosthodontics

Ingrid M Green, Ioanna Margoni, Sean P Nair, Haralampos Petridis
PURPOSE: To determine whether coating polymethyl methacrylate (PMMA) discs with Parylene-C would reduce Staphylococcus aureus and Candida albicans biofilm formation. MATERIALS AND METHODS: MRSA and Candida albicans single and dual biofilms were grown for 48 hours in artificial saliva on parylene-C-coated or uncoated PMMA, and the viable biofilm colony-forming units were counted. RESULTS: There was no significant difference in the count of viable methicillin-resistant Staphylococcus aureus or Candida albicans recovered from single- or dual-species biofilms between coated and uncoated PMMA discs...
September 2019: International Journal of Prosthodontics
Stefano Pieralli, Aiste Gintaute, Florian Beuer, Benedikt Christopher Spies
Patients presenting both severe maxillary atrophy and dental malposition require a multidisciplinary treatment approach to achieve optimal esthetic and functional results. This case history report demonstrates how digital treatment planning and teeth set-up can serve as a reference for surgical, orthodontic, and prosthodontic procedures, leading to an all-ceramic full-arch implant-supported fixed prosthesis.
March 2019: International Journal of Prosthodontics
Reem Hanna, Andrea Amaroli, Antonio Signore, Stefano Benedicenti
This case history reports the treatment of a Caucasian woman in her mid-70s who was medically compromised and on anticoagulant medication. She presented with three lesions: the first was located in the mandibular buccal mucosa, extending into the regions of the mandibular left and right second premolars, the second in the maxillary right region, and the third in the junction between the hard and soft palates. Carbon dioxide laser therapy was chosen as a treatment modality and was utilized at a lower power setting of 1...
March 2019: International Journal of Prosthodontics
David A Cruz Walma, Julius C Seidenfaden, Firas Mourad, Michael T Kase
PURPOSE: To describe prosthetic rehabilitation following partial rhinectomy with use of a novel retentive internal nasal keeper piece. MATERIALS AND METHODS: The reported novel nasal keeper piece engaged the intact inferior portions of the major alar cartilages and the alar fibrofatty tissues to aid in retention of the prosthesis. RESULTS/CONCLUSION: The reported prosthesis utilizes a retentive mechanism not previously reported in the literature to maximize function and esthetics...
March 2019: International Journal of Prosthodontics
Marcos Cezar Pomini, Marina Molinari Machado, Giovanny de Paula Quadros, Giovana Mongruel Gomes, Lidia Olga Bach Pinheiro, Adriana Postiglione Buhrer Samra
PURPOSE: To evaluate the fracture resistance and bond strength of cast posts and cores (CPCs) and customized glass fiber posts (CFPs) with self-adhesive luting. MATERIALS AND METHODS: A total of 56 recently extracted premolars were divided into four groups for the fracture resistance test (CPC and CFP, with and without ferrule) and four groups for the bond strength test (CPC and CFP, immediate and 6 months of storage). RESULTS: Differences for fracture resistance were found between CPCs and CFPs with ferrule...
March 2019: International Journal of Prosthodontics
Ami Amelya, Jong-Eun Kim, Chang-Woo Woo, Jamiyandorj Otgonbold, Keun-Woo Lee
PURPOSE: To compare the load-bearing capacity after long-term use (5-year simulation) of posterior three-unit implant-supported fixed partial dentures (FPDs) fabricated with different esthetic materials. MATERIALS AND METHODS: A total of 20 specimens fabricated from one design file using CAD/CAM were divided into four groups: polyetherketoneketone (PEKK) veneered with composite resin (CR); PEKK veneered with lithium disilicate (LD); zirconia veneered with fluorapatite (FA); and monolithic zirconia...
March 2019: International Journal of Prosthodontics
Vinícius C Carneiro, Caíque A Siqueira, Flavia B Valentim, Amanda LE Oliveira, Matheus L Oliveira, Rogério A Azeredo, Sergio L de-Azevedo-Vaz
PURPOSE: To assess the accuracy of three cone beam computed tomography (CBCT) systems in misfit detection at the implant-abutment joint. MATERIALS AND METHODS: A total of 32 implants were placed in dry human mandibles. Porcelain-fused-to-metal crowns, both with and without a 200-μm-thick gap at the implant-abutment joint, were placed and then scanned using three CBCT systems: Picasso Trio (PT), OP300 (OP), and Scanora 3D (SC). Images were assessed, and area under the receiver operating characteristic curve (Az) values were compared (a = ...
March 2019: International Journal of Prosthodontics
Konstantinos Chatzivasileiou, Eleni Kotsiomiti, Timoleon-Achilleas Vyzantiadis
PURPOSE: To experimentally examine the effectiveness of a small sample of commercial denture cleansers in removing Candida albicans cells from denture surfaces. MATERIALS AND METHODS: A total of 216 specimens from three brands of denture base resins (72 for each acrylic resin) were divided into three groups of 24 specimens that each received a different surface treatment (Ra1, Ra2, and Ra3). The specimens were contaminated by the Candida albicans strain ATCC 90028, immersed for 15 minutes in one of two experimental denture cleanser solutions or in tap water, and placed in Petri dishes with culture medium...
March 2019: International Journal of Prosthodontics
Caroline Cantieri Mello, Cleidiel Aparecido Araujo Lemos, Jéssica Marcela de Luna Gomes, Fellippo Ramos Verri, Eduardo Piza Pellizzer
PURPOSE: To compare the marginal vertical misfit between implant-supported frameworks fabricated using CAD/CAM systems and the conventional technique (lost-wax casting). MATERIALS AND METHODS: This review was performed according to PRISMA criteria and registered on PROSPERO (CRD42017055685). An electronic search was performed independently by two examiners in the MEDLINE (Pubmed), Embase, Web of Science, and Cochrane Library databases to find studies published up to April 2018...
March 2019: International Journal of Prosthodontics
Frank P Nothdurft
PURPOSE: To assess the clinical performance of a prefabricated all-ceramic zirconium dioxide implant abutment for single-tooth replacement in the posterior region. MATERIALS AND METHODS: Forty implants (Xive S plus screw type, Dentsply Sirona Implants) were inserted into the posterior region in 24 patients and were provided with zirconium dioxide abutments (Cercon abutment, Dentsply Sirona Implants). The licensed range of indications for these abutments is limited to the maxillary and mandibular anterior teeth...
March 2019: International Journal of Prosthodontics
Linda Heierle, Karin Wolleb, Christoph Hf Hämmerle, Daniel B Wiedemeier, Irena Sailer, Daniel S Thoma
PURPOSE: To assess the biologic and technical responses to cemented and screw-retained all-ceramic single-tooth implant-supported reconstructions at 3 years postinsertion. MATERIALS AND METHODS: Thirty-four patients with single-tooth implants were randomly restored with either a cemented lithium disilicate crown on a customized zirconia abutment (CEM) or a screw-retained crown with a directly veneered zirconia abutment (SCREW). At baseline examination and after 3 years of loading, marginal bone level and technical parameters were assessed...
March 2019: International Journal of Prosthodontics
Lieven Barbier, Lies Pottel, Joke De Ceulaer, Philippe Lamoral, Joke Duyck, Reinhilde Jacobs, Johan Abeloos
PURPOSE: To evaluate the feasibility and efficacy of a novel concept of early loaded (ie, within 2 weeks) implant-supported fixed dental prostheses (ISFDP) for patients who underwent mandibular reconstruction. MATERIALS AND METHODS: All patients requiring mandibular reconstruction between July 2013 and March 2016 at AZ Sint-Jan Brugge-Oostende AV were screened for dental rehabilitation according to the proposed concept. Of 17 patients, 10 were eligible for inclusion...
March 2019: International Journal of Prosthodontics
Reiner Mengel, Janke Wendt, Barbara Peleska
PURPOSE: To report and analyze long-term treatment outcomes in a patient cohort with severe periodontal disease treated with an employed protocol combining use of implants and double-crown prosthetic support. MATERIALS AND METHODS: A convenience sample of 16 patients with generalized severe periodontal disease were prosthodontically managed with support from 83 dental implants and 21 removable prostheses using a double-crown concept (11 implant-tooth supported and 10 implant supported)...
March 2019: International Journal of Prosthodontics
Torsten Jemt
PURPOSE: To report implant failures in partially edentulous patients over a long-term period, focusing on differences in treatment outcomes between maxillary vs mandibular arches and different implant surfaces. MATERIALS AND METHODS: Altogether, 2,453 patients were consecutively treated with 9,167 implants in 2,915 partially edentulous arches (Kennedy Class I or II) between 1986 and 2015 at one referral clinic. Implant failures were recorded on a routine basis at the clinic during follow-up, and the failures were analyzed with a focus on associations with treated arch and implant surface by means of a multivariable regression analysis...
March 2019: International Journal of Prosthodontics
Thi-Lan N'Guyen-Van, Nathan Moreau, Adeline Braud
PURPOSE: The aims of this study were to develop a French version of the Orofacial Esthetic Scale (OES) and to investigate its psychometric properties among French-speaking dental patients. MATERIALS AND METHODS: The OES is an eight-item instrument initially developed to assess self-reported orofacial esthetics in patients with prosthodontic concerns. The first seven items refer to direct esthetic impact and give a summary score, and the remaining item is a global assessment item...
March 2019: International Journal of Prosthodontics
Ben I Omondi, Fredah Chepkwony, Rael M Ariemba, Josephat O Miyogo, Gladys N Opinya
This case history report describes the dental management of a child with ectodermal dysplasia with the premise that appropriate and early dental management positively impacts the oral health-related quality of life of such patients, irrespective of the age at which treatment is initiated.
January 2019: International Journal of Prosthodontics
William Pacquet, Aurélie Benoit, Christina Hatège-Kimana, Claudine Wulfman
PURPOSE: To evaluate the influence of fabrication processes on the mechanical properties of denture base resins. MATERIALS AND METHODS: Flexural strength, fracture toughness, and Vickers hardness were measured on a conventional pack-and-press resin (PRO), a resin for injection molding (CAP), and a CAD/CAM disc (CAD). RESULTS: For maximal flexural strength, PRO (97.31 MPa) was stronger than CAD (87.98 MPa) and CAP (79.35 MPa). CAD displayed hardness similar to PRO and high fracture toughness...
January 2019: International Journal of Prosthodontics
George K Koch, Bonface James, German O Gallucci, Adam Hamilton
PURPOSE: This in vitro study aimed to evaluate the accuracy of surgical templates fabricated using three different 3D printing technologies. MATERIALS AND METHODS: Ten identical surgical templates were printed using four 3D printers (two of an identical make and model). Each of the surgical templates was scanned by a reference scanner and then imported into the inspection software. Inspection software utilized a best-fit alignment to automatically calculate the 3D variation at all points...
January 2019: International Journal of Prosthodontics
Adham Elsayed, Gasser Farrag, Mohamed Sad Chaar, Nouran Abdelnabi, Matthias Kern
PURPOSE: To investigate the effects of different commercially available computer-aided design/computer-assisted manufacturing (CAD/CAM) materials for fabrication of molar crowns, including polyetheretherketone (PEEK), on the fracture strength and failure mode of custom-made titanium and zirconia abutments after artificial aging. MATERIALS AND METHODS: A total of 48 identical custom-made CAD/CAM abutments milled out of titanium or zirconia were divided into six test groups of eight specimens each...
January 2019: International Journal of Prosthodontics
Mai Mohammed Alhamdan, Jonathan Campbell Knowles, Ailbhe McDonald
PURPOSE: To evaluate strain in teeth with differing quality and quantity of tooth surface loss by utilizing surface displacement field measured using digital image correlation (DIC) and strain gauges (SG). MATERIALS AND METHODS: A total of 80 mesio-occlusodistal preparations were carried out in human maxillary premolars. Ten sound premolars served as a control group, and treated samples were divided into two groups of 40 each according to the composition of the prepared walls (composed of either enamel and dentin [E + De] or dentin only [De])...
January 2019: International Journal of Prosthodontics
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