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Available online xxxKeywords: Zirconium-oxide Sintering Surface treatment Resin cement Bond strength a b s t r a c t 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 F2.0). Shear bond strength test was performed after specimens were stored in water for 24 h and thermocycled for 6000 cycles (5-55 8C). Data were statistically analyzed with two-way analysis of variance (ANOVA) and Tamhane's multiple comparison test (a = 0.05). Results: According to the ANOVA, sintering time, surface treatments and their interaction were statistically significant ( p < 0.05). The highest bond strengths were obtained in GSbCoSil (Ss = 13.36/Ls = 11.19 MPa) and lowest values were obtained in GC (Ss = 4.70/ Ls = 4.62 MPa) for both sinter groups. Conclusions: Sintering time may be effective on the bond strength and 30 mm silica coating (Cojet) with silane coupling application technique increased the bond strength between resin cement and differently sintered zirconium-oxide ceramics. Please cite this article in press as: Yenisey M, et al. Effect of surface treatments on the bond strength between resin cement and differently sintered zirconium-oxide ceramics. J Prosthodont Res (2015), http://dx.

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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=0.01).Results:The Wand technique had a lower pain level compared to conventional injection for needle insertion (p<0.01). In the anesthetic delivery phase, pain level for the Wand technique was lower (p<0.01). However, there was no difference between the Wand and conventional technique for pain level during tooth preparation (p>0.05).Conclusions;The AMSA technique using the Wand is recommended for prosthodontic treatment because it reduces pain during needle insertion and during delivery of local anaesthetic. However, these two techniques have the same pain levels for tooth preparation.

In addition to its other symptoms, ectodermal dysplasia causes anodontia and hypodontia intraorally. Partial or total anodontia results in some loss of function, such as chewing, and affects aesthetics. Prosthodontic rehabilitation can be accomplished with fixed, overdenture, complete, or implant-retained prostheses. For rehabilitation, it is crucial to know the age, number and condition of present teeth, and the state of growth of the patient. A 10-year-old male patient who visited our clinic was treated by a multi-disciplinary team of surgeons, orthodontists, and prosthodontists. An overdenture was planned, and an implantsupported prosthesis was considered for when the patient had finished growing. A clasp retained over the denture was planned for prosthetic rehabilitation after considering his growth and the number and condition of his present teeth.

Variation in sintering time from 2.5 to 5.0 h may have influenced the SBS of Yttrium-stabilized tetragonal zirconia polycrystalline (Y-TZP) ceramics. Although CO2 and Er:YAG laser irradiation techniques may increase the SBS values of both tested zirconia ceramics, they are recommended for clinicians as an alternative pretreatment method.

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. Among the treatment options for AI, full-mouth metal reinforced porcelain restoration constitutes an important alternative because of its properties. This paper presents a case of AI of the hypoplastic rough type associated with a group of dental anomalies, and describes the prosthetic management of the patient. A 26-year-old female patient presented with a chief complaint of discolored teeth. Clinical and radiographic examination of the patient confirmed the diagnosis of rough pattern hypoplastic AI. The patient was treated with full-mouth metal reinforced porcelain fixed bridge. The adaptation of the temporomandibular joints and masticatory muscles was carefully observed periodically during 4 months and, after this period, the patient tolerated well her new vertical dimension. The patient received instructions on cleansing of the subpontic and interproximal areas. Follow-up visits were scheduled at 3 months and then at 6 months. No esthetic or functional problems were seen after the follow up period.