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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Dental Rehabilitation and Applied Science
Journal Basic Information
Journal DOI :
Korean Academy of Stomatognathic Function and Occlusion
Editor in Chief :
Volume & Issues
Volume 27, Issue 4 - Dec 2011
Volume 27, Issue 3 - Sep 2011
Volume 27, Issue 2 - Jun 2011
Volume 27, Issue 1 - Mar 2011
Selecting the target year
Shear Bond Strength of Composite Resin (
ATL) Veneering on Zirconia Surface with Various Surface Treatments
Park, Soo-Jeong ; Lee, Richard Sung-Bok ; Lee, Suk-Won ; Ahn, Su-Jin ; Lim, Ho-Nam ;
Journal of Dental Rehabilitation and Applied Science, volume 27, issue 1, 2011, Pages 1~13
The aim of this study was to evaluate shear bond strength of pressed reinforced composite resin (
ATL) veneering to zirconia with various surface treatments. Forty sintered zirconia specimens and forty pockmarked zirconia specimens were fabricated. All the materials were categorized as Group 1 (Control : porcelain veneering on zirconia surface), Group 2 (
ATL dentine veneering after bonding agent application on zirconia surface), Group 3 (
ATL dentine veneering on pockmarked zirconia surface), Group 4 (
ATL dentine veneering after bonding agent application on pockmarked zirconia surface), Group 5 (Thermocycling on Group 1), Group 6 (Thermocycling on Group 2), Group 7 (Thermocycling on Group 3), and Group 8 (Thermocycling on Group 4). SBS(Shear bond strength) of 8 groups was determined with an Instron Universal Testing Machine. Also fractured surface of specimens were observed with a scanning electron microscope. There were no significant differences in the initial SBS between Group 1(control group), Group 3, and Group 4. (p>0.05) Group 2 presented the lowest SBS values. There was a no significant difference between just as 24hour water storage and simulated aging on pockmarked zirconia groups. (p>0.05) A formation of pockmarked irregularities on zirconia surface as mechanically pitted surface was reliable method for establishing a stronger bond between
ATL and zirconia-based material.
Dental Occlusion and Its Relationship to TMD and Systemic Symptoms (IV) - Myodontics Theory
Bae, Hanna Eun-Kyong ; Park, Eun-Jin ; Choi, Byeong-Gap ;
Journal of Dental Rehabilitation and Applied Science, volume 27, issue 1, 2011, Pages 15~23
This is the fourth series of article on dental occlusal relationship to TMD and systemic symptoms. In this part of the series, Myodontics theory is overviewed and its theoretical background, treatment sequence and methods are presented.
A Prospective Clinical Trial on the Mg Oxidized Clinical Implants
Im, So-Min ; Kim, Dae-Gon ; Park, Chan-Jin ; Cho, Lee-Ra ; Um, Heung-Sik ; Lee, Jae-Kwan ;
Journal of Dental Rehabilitation and Applied Science, volume 27, issue 1, 2011, Pages 25~39
In animal studies, Magnesium (Mg) - incorporated oxidized implants showed significant enhancement of the bone response. This prospective clinical trial was performed to investigate the success rate, implant stability and marginal bone loss of Mg oxidized clinical implant. The experimental protocol was approved by Institutional Review Board of the Gangneung-Wonju National University Dental Hospital. Fifty healthy patients had partial edentulism were included in this study. Mg oxidized clinical implants (Implant M, Shinhung, Korea) were installed and restored with conventional protocol. The patients were recalled at 1, 3, 6 months after functional loading. Implant stability quotient (ISQ) was measured and periapical radiographic images were obtained. Amount of marginal bone loss was calculated with calibrated images from periapical radiographs. Repeated measured analysis of variance and post hoc Tukey test were used to compare the mean ISQ and bone level. A total of 101 implants were analyzed. The mean ISQ values increased continuously with time lapse from 68.4 at fixture installation to 71.5 at 6 months after loading. Implant stability was correlated with gender, fixture diameter, bone quality and implant sites. The mean marginal bone loss during 6 months after loading was 0.26 mm. There was no failed implant and six-month success rate was 100%. Within the limitations of this study, the six-month success rate of Mg oxidized implant was satisfactory. The implant stability and marginal bone level were excellent. However, further longer clinical studies will be needed to confirm the success of Mg oxidized clinical implant.
The Apico-Coronal and Mesio-Distal Positions of the Gingival Zenith in the Maxillary Anterior Dentition
Choi, Jung-Yun ; Seong, Dong-Hwan ; Song, Kwang-Yeob ; Park, Ju-Mi ; Ahn, Seung-Geun ;
Journal of Dental Rehabilitation and Applied Science, volume 27, issue 1, 2011, Pages 41~50
The gingival zenith is the most apical point of the gingival outline. This study aimed to quantify the mesio-distal and apico-coronal displacements of gingival zenith in maxillary anterior dentition. 50 healthy patients, who ranged in age from 25 to 36 years were recruited for the study. Alginate impressions of the study group were made and poured with the type III stone. The gingival zenith positions of maxillary anterior teeth were measured in a mesial-lateral direction from the vertical bisected midline. The apico-coronal displacements of the gingival zenith of lateral incisors were measured from a line joining the gingival zeniths of the central incisor and canine. The gingival zeniths were distally displaced in 90%, 53% and 23% of the maxillary cetral incisors, lateral incisors and canines respectively. The mean distal displacements of the gingival zeniths to the vertical bisected midline of central incisors, lateral incisors and canines were 0.90 mm, 0.29 mm and 0.06 mm respectively. The gingival zeniths of lateral incisors were positioned
mm coronally to the line joining the gingival zenith of central incisors and canines. Consideration of these findings may improve restorative procedures in the anterior maxillary dentition.
Three-Dimensional Finite Element Analysis for Comparison between Titanium Implant Abutment and Zirconia Implant Abutment
Yun, Mi-Jung ; Kim, Chang-Weop ; Jeong, Chan-Mo ; Seo, Seung-U ;
Journal of Dental Rehabilitation and Applied Science, volume 27, issue 1, 2011, Pages 51~61
Recently, restoring implants in the esthetically demanding region, zirconia-based materials are widely used due to their superior mechanical properties, accuracies, and esthetics. The purpose of this study was to investigate the load transfer and mechanical stability of zirconia and titanium implant abutments by using the three-dimensional finite element analysis model. The internal conical joint type and external butt joint type implant system was selected as an experimental model. Finite element models of bone/implant/prosthesis complex were constructed. An load of 250N was applied vertically beside 3mm of implant axis. Stress distribution of zirconia and titanium implant abutment is similar. The maximum equivalent stress of titanium implant abutment is lower than zirconia implant abutment about 15%. Howevere considering a high mechanical strength that exceed those of titanium implant abutment, zirconia implant abutment had similar mechanical stability of titanium implant abutment clinically.
Sagittal Reference Plane for Soft Tissue Analysis in Facial Asymmetry Patients
Chung, Dong-Hwa ;
Journal of Dental Rehabilitation and Applied Science, volume 27, issue 1, 2011, Pages 63~71
Major type of facial asymmetry results from facial deformity and needs surgical correction. To diagnose facial asymmetry and set a treatment plane for patients, setting a sagittal reference plane is crucial. The purpose of this study is comparison of measurements of sagittal soft tissue reference point to three different sagittal planes. The subjects are 25 of asymmetry patients (M:15, F:10) and 19 of normal people. There are differences in point Gnathion and Stomion. Most of measurement of sagittal reference points showed within 1 mm difference from sagittal reference plane. Deviation of point Pronasale in Sa1 plane revealed significant difference among 3 reference planes. The deviation of Gnathion was proportional to the deviation of Stomion in all 3 reference planes.
The Effect of Titanium on the Castability of Cobalt-Chrome Alloy
Ryu, Su-Kyoung ; Chung, Hee-Jeong ; Vang, Mong-Sook ; Yang, Hong-So ; Lim, Hyun-Pil ; Yun, Kwi-Dug ; Park, Sang-Won ;
Journal of Dental Rehabilitation and Applied Science, volume 27, issue 1, 2011, Pages 73~79
Purpose of this experiment is to evaluate the effect of titanium on the castability when the titanium is added to the Co-Cr alloy. Raw materials Cobalt, Chrome, Molybdenum, Silicon, Manganase, Carbon, Nitrogen, Titanium were weighted and prepared.
(Degudent, Germany) was the control group. To the experimental group, different weight percent of titanium was added from 1 wt% to 4 wt%. The wax pattern is
cm in size, rectangular in shape and has total of 160 grids. Centrifugal machine (Neutrodyne Easy Ti: Manfredy) was used for casting. For evaluation of the castability, the number of complete grids was counted by visual inspection and X-ray inspection. The test showed similar castability with the control group in the titanium addition of 1 wt% to 3 wt%. The titanium addition of 4 wt% showed poor result. With titanium lower than 4 wt%, the experiment metals showed proper castability with high expectation of successful clinical use.
In vitro Measurement of the Mechanical Properties of Resin Infiltrant: Viscosity, Penetration Pattern, Surface Roughness, Microhardness
Hong, Seung-Hyun ; Kim, Min-Jeong ; Cho, Hye-Jin ; Yu, Mi-Kyung ; Lee, Kwang-Won ;
Journal of Dental Rehabilitation and Applied Science, volume 27, issue 1, 2011, Pages 81~90
In this study, we observed the penetration of the resin infiltrant into natural initial caries by SEM and CLSM, evaluated the pH and viscosity of resin infiltrant and several adhesives(All-bond 2, Scotchbond Multi-purpose, Clearfil SE bond), and measured the surface roughness and the microhardness on permanent teeth before and after applied resin infiltrant into initial enamel caries. The viscosity(Pa.s) was observed for resin infiltrant(
), All-bond 2(
), Scotchbond Multi-purpose(
), and Clearfil SE bond(
). The pH was measured for resin infiltrant (4.7), All-bond 2(7.5), Scotchbond Multi-purpose(8.2), and Clearfil SE bond(4.67). An application procedure of resin infiltrant increased the surface roughness and the microhardness insignificantly(p>0.05), when compared to non-applied specimens.
The Evaluation of RPM Change in X-Smart According to Power Source: Endodontic Wireless Electronic Motor
Park, Se-Hee ; Jeong, Dong-Bin ; Cho, Kyung-Mo ; Kim, Jin-Woo ;
Journal of Dental Rehabilitation and Applied Science, volume 27, issue 1, 2011, Pages 91~97
The purpose of this study was to evaluate RPM maintenance in X-Smart according to the power supplied by the AC adapter and rechargeable battery. Five new X-Smart were used in this study. A handpiece with rubber disk which has reflective tape was mounted on the vice. To measure the RPM, a non-contact type digital tachometer was used. RPM measurements were recorded every 5 minutes to 180 minutes and repeated 3 times per motor from each power source. To evaluate a difference of the RPM changes, two-way repeated measures were performed using
14.0. All tests were conducted at the 95 percent confidence level. There was no significant difference in the RPM change between the power sources. Continuous use of X-Smart with a rechargeable battery for up to 180 minutes could be safely used as an endodontic wireless motor with a reliable RPM maintenance.
A Comparison of the Effectiveness of Stainless-Steel Hand Instrument and Rotary NiTi Retreatment Instrument to Remove Gutta-Percha in Curved Root Canals
Nam, Dong-Goo ; Kim, Min-Jeong ; Cho, Hye-Jin ; Lee, Kwang-Won ; Yu, Mi-Kyung ;
Journal of Dental Rehabilitation and Applied Science, volume 27, issue 1, 2011, Pages 99~107
The main objective of nonsurgical retreatment is to disinfect the root canal space for periradicular healing. Thus, efficient removal of the filling material from the root canal system is essential to ensure a favorable outcome. Traditionally, the removal of root canal filling material was performed by stainless steel hand instrument and this procedure is time and effort-consuming. Recently, rotary NiTi retreatment instruments are developed to effective removal of root canal filling material. The aim of this study was to evaluate the effectiveness of stainless-steel hand instrument and rotary NiTi retreatment instrument when removing gutta-percha in curved root canals. For the remaining materials, there were no significant differences between groups. But the rotary NiTi system proved to be faster than hand instruments in removing root filling materials.
Horizontal Ridge Augmentation using Ridge Expansion and Autogenous Tooth Bone Graft: A Case Report
Kim, Young-Kyun ; Yi, Yang-Jin ;
Journal of Dental Rehabilitation and Applied Science, volume 27, issue 1, 2011, Pages 109~115
Implants were placed after performing ridge expansion by inserting screws of gradually increasing thickness. Favorable clinical outcome was obtained. During surgery, buccal cortical plate fracture did not occur. Autogenous tooth bone graft material was grafted around the implant dehiscence defects and over the buccal cortical plate. The method involving the insertion of screws for ridge expansion is a successful and predictable technique for implant placement in narrow alveolar bone. Autogenous tooth bone graft material can be used for ridge augmentation and GBR.
Clinical Application of Dynamic Impression Method Using Coe-Comfort
in Edentulous Patients
Keum, Eun-Cheol ; Song, Young-Gyun ; Lim, Jong-Hwa ; Shin, Soo-Yeon ;
Journal of Dental Rehabilitation and Applied Science, volume 27, issue 1, 2011, Pages 117~123
Impression taking procedure is very important for support, retention and stability of denture, and it affects the success of denture in completely edentulous patients. Various materials and methods have been used for impression taking in complete denture, while dynamic impression method is more physiological and functional method than the others. We had satisfying results with fabrication and relining of dentures after taking impression in the most physiological condition with recovery of deformed soft tissue by dynamic impression method using Coe-comfort
(GC America, IL, USA), tissue conditioner, in edentulous patients in this case report.