An Alternative Prosthetic Approach for Rehabilitation of Two Edentulous Maxillectomy Patients: Clinical Report.

Obturator prosthesis is a common treatment method for maxillectomy patients for maintaining their oronasal separation and resuming their social lives. After tumor resection, the remaining anatomical structures have a significant effect on prosthesis retention. The present study describes the rehabilitation of two maxillectomy patients after cancer surgery using a prosthesis consisting of a denture and a special retentive obturator that is positioned in the anatomical undercuts of the nasal cavity.

Effect of electrical discharge machining on dental Y-TZP ceramic-resin bonding.

Purpose: The study determined (i) the effects of electrical discharge machining (EDM) on the shear-bond strength (SBS) of the bond between luting resin and zirconia ceramic and (ii) zirconia ceramic's flexural strength with the three-point bending (TPB) test.

Methods: Sixty 4.8mm×4.

Effects of Laser Treatment on the Bond Strength of Differently Sintered Zirconia Ceramics.

Objective: The purpose of this study was to investigate the effects of carbon dioxide (CO2) and Erbium-doped yttrium aluminum garnet (Er:YAG) laser irradiations on the shear bond strength (SBS) of differently sintered zirconia ceramics to resin cement.

Materials And Methods: Eighty zirconia specimens were prepared, sintered in two different periods (short = Ss, long = Ls), and divided into four treatment groups (n = 10 each). These groups were (a) untreated (control), (b) Er:YAG laser irradiated with 6 W power for 5 sec, (c) CO2 laser with 2 W power for 10 sec, (d) CO2 laser with 4 W power for 10 sec.

Effect of surface treatments on the bond strength between resin cement and differently sintered zirconium-oxide ceramics.

Purpose: This study investigated the effects of surface treatments on bond strength between resin cement and differently sintered zirconium-oxide ceramics.

Methods: 220 zirconium-oxide ceramic (Ceramill ZI) specimens were prepared, sintered in two different period (Short=Ss, Long=Ls) and divided into ten treatment groups as: GC, no treatment; GSil, silanized (ESPE-Sil); GSilPen, silane flame treatment (Silano-Pen); GSb, sandblasted; GSbSil, sandblasted+silanized; GSbCoSil, sandblasted+silica coated (CoJet)+silanized; GSbRoSil, sandblasted+silica coated (Rocatech-Plus)+silanized; GSbDSil, sandblasted+diamond particle abraded (Micron MDA)+silanized; GSbSilPen, sandblasted+silane flame treatment+silanized; GSbLSil, sandblasted+Er:Yag (Asclepion-MCL30) laser treated+silanized. The composite resin (Filtek Z-250) cylinders were cemented to the treated ceramic surfaces with a resin cement (Panavia F2.

Effects of different surface pre-treatments on the bond strength of adhesive resin cement to quartz fiber post.

Objective: The purpose of this study was to evaluate the effect of mechanical and chemical surface treatment methods on the bond strength of resin cement to fiber post.

Materials And Methods: The roots of 36 maxillary central incisor teeth were mounted in auto polymerized acrylic resin blocks (10 × 15 mm) and the root canals were enlarged with the drills of post system (2.1 mm width, 12 mm length).

Comparison of heat generation during implant drilling using stainless steel and ceramic drills.

Purpose: The purpose of this study was to compare the heat generated from implant drilling using stainless steel and ceramic drills.

Materials And Methods: A total of 40 fresh bovine femoral cortical bone samples were used in this study. A constant drill load of 2.

Prosthetic treatment of congenital hard and soft palate defects.

Obturator prostheses are used to improve mastication, speech, and swallowing by reestablishing oronasal separation and aesthetics in maxillary defect patients. A sectional and magnetically retained functional removable speech bulb prosthesis was planned to treat the congenitally cleft hard and soft palates of this patient. The obturator part, localized into lateral nasal undercuts covered with sound mucosa, was used to retain the complete denture.

Amelogenesis imperfecta, hypoplastic type associated with some dental abnormalities: a case report.

Amelogenesis imperfecta (AI) is a hereditary disorder expressing a group of conditions that cause developmental alterations in the structure of enamel. AI is a serious problem that reduces oral health-related quality of life and causes some physiological problems. The treatment of patients with AI may upgrade the quality of life and reinforce their self-esteem.

Comparison of the pain levels of computer-controlled and conventional anesthesia techniques in prosthodontic treatment.

Objective: The objective of this study was to compare the pain levels on opposite sides of the maxilla at needle insertion during delivery of local anesthetic solution and tooth preparation for both conventional and anterior middle superior alveolar (AMSA) technique with the Wand computer-controlled local anesthesia application.

Material And Methods: Pain scores of 16 patients were evaluated with a 5-point verbal rating scale (VRS) and data were analyzed nonparametrically. Pain differences at needle insertion, during delivery of local anesthetic, and at tooth preparation, for conventional versus the Wand technique, were analyzed using the Mann-Whitney U test (p=0.

Effect of surgical drill guide on heat generated from implant drilling.

Purpose: The purpose of this study was to evaluate the heat generated in bone by 2 implant drill systems in vitro with and without using surgical drill guides.

Materials And Methods: Temperature was measured with K type thermocouple in vitro using the bovine femoral cortical bone model. A constant drill load of 2.

Intraoral findings of Papillon-LeFevre syndrome.

Papillon-Lefevre syndrome (PLS) is a rare autosomal, recessive condition characterized by hyperkeratosis of palms and soles of the feet and elbows and by rapid formation of periodontitis and hypermobility, migration and exfoliation of the teeth of primary and permanent dentition. The purpose of this report was to describe the case of an 8-year-old boy who presented to the Department of Oral Diagnosis and Radiology of Faculty of Dentistry of Ondokuz Mayis University with a chief complaint of mobility and rapid loss of teeth. Hyperkeratosis of palms and soles were realized.

Effects of chemical surface treatments of quartz and glass fiber posts on the retention of a composite resin.

Statement Of Problem: Failure of a fiber post and composite resin core often occurs at the junction between the 2 materials. This failure process requires better characterization.

Purpose: The purpose of this study was to evaluate the effect of 2 chemical solvents, hydrogen peroxide and methylene chloride, on the shear bond strength of quartz and glass fiber posts to a composite resin.

Effect of acid etching time and a self-etching adhesive on the shear bond strength of composite resin to porcelain.

Unlabelled: PURPOSE The purpose of this study was to evaluate the effect of different acid etching times with 9.6% hydrofluoric acid gel and two adhesive systems on shear bond strengths of resin composite to porcelain.

Materials And Methods: Ninety-eight 7 x 7 x 2 mm feldspathic porcelain blocks (VMK 95, Vita) were prepared.