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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 25, Issue 4 - 00 2009
Volume 25, Issue 3 - 00 2009
Volume 25, Issue 2 - 00 2009
Volume 25, Issue 1 - 00 2009
Selecting the target year
Comparison of the replicability of centric relation registration techniques using Arcus
Lim, Hyun-Pil ; Cho, Young-Eun ; Park, Sang-Won ;
Journal of Dental Rehabilitation and Applied Science, volume 25, issue 3, 2009, Pages 201~210
The purpose of this study was to compare the replicability of centric relation made by means of self guided method, bimanual manipulation, chin-point guidance, leaf gauge method, gothic arch tracing. The EPA test of Arcus
was employed for examining the reproducibility of centric relation. 10 adults with normal occlusion were participated in this study. In this limitation of study, the following results were obtained; Condyle position was different depending on different methods of guiding centric relation . Left and right temporomandibular joints showed a little different degree of repeatability. Bimanual manipulation using anterior jig was the most replicable. Chin point guidance provided the second most repeatable method, and Gothic arch tracing showed the third, the leaf gauge was the forth , the self-guided method was the worst.
Radiographic examination of the Osseous Abnormalities of the Mandibular Condyle Using Cone Beam Computed Tomography
Kim, Yu-Jin ; Kim, Yun-sang ; Kim, Min-Jeong ; Sim, Hun-Bo ; Oh, Sang-chun ;
Journal of Dental Rehabilitation and Applied Science, volume 25, issue 3, 2009, Pages 211~224
The objective of this study is to examine the condylar surfaces in order to find out the types, the incidence and common occurrence area of the osseous abnormalities of the condyles according to the age, genders and the purpose of CT taking, and to compare those between the groups for TMD diagnosis and the other groups. 3D CT images of 199 patients which were scanned with the
Cone Beam Computed Tomography were collected from Sanbon Dental Hospital of Wonkwang university and the MPR images were transfered to the TMJ mode to be showed serial sagittal images and coronal images. The images were macroscopically examined by three independent observers for the types and incidences of the osseous abnormalities, their common occurrence area and general shapes of the condyles. As a result, type F is most common ever than type N. The common occurrence area in sagittal images is antero-superior and superior area except for type D-C which were showed on postero-superior area commonly. In coronal images, latero-superior and superior area is most common except for type E which were present on mesio-superior and superior area most frequently. The osseous abnormalities of the condyles are more common in TMD diagnosis group except for type D-C, that is type N and type D-C are more common in the other groups. In this study, abnormalities of the condyles are classified into 6 types and it has a common occurrence area each. And TMD diagnosis group shows a tendency to have higher rate for osseous abnormalities except for type D-C.
Comparison on the Fracture Strength Depending on the Fiber Post and Core Build-up
Lee, Ja-Hyoung ; Shin, Soo-Yeon ;
Journal of Dental Rehabilitation and Applied Science, volume 25, issue 3, 2009, Pages 225~235
A common procedure of restoration of endodonticlly treated tooth with fiber-reinforced post is followed by core build-up after post cementation. However, this technique is complex and time-consuming. The aim of this study was to compare fracture strength of premolar, restored with various methods of core fabrications on fiber-reinforced posts and casting metal restoration. Forty five freshly extracted human mandibular premolars were obtained and devided into 5 groups acconding to the type of post and methods of core build-up. In Group A, D.T.
were cemented with
was used for core restoration. In Group B, D.T.
and DUO-LINKTM were used for cementing in the postspace, and
was used again for core restoration. In Group C,
bonding and the core build-up were performed simultaneously by using
. In Group D,
was bonded by using
-Dual was used for core restoration. In Group E,
bonding and the core build-up were performed simultaneously by using
-Dual. Axial reduction was formed parallelly as possible and 45 degree bevel was made at buccal occlusal surface. Crowns were fabricated and cemented. Each tooth was embedded in self-curing acrylic resin to the level of 2mm below the CEJ. Specimens were fixed on universal testing machin such that the axis of the tooth was at 45 degree inclination to the horizontal plane, and compressive force was applied at a crosshead speed of 1mm/min until failure occurred. The mean fracture strength was the highest in group A followed by descending order in group B, D, E and C. However, there were no statistically significant differences between groups with regard to the fracture strength. The type of the post or build-up methods of the core does not seem to influence the fracture strength.
Synovial Chondromatosis of the Temporomandibular Joint :A Case Report
Koh, Se-Wook ;
Journal of Dental Rehabilitation and Applied Science, volume 25, issue 3, 2009, Pages 237~242
the primary diagnosis of synovial chondromatosis of temporomandibular joint is extremely rare. often many months, or even years pass before the diagnosis is confirmed. synovial chondromatosis is an uncommon disease of cartilage transformation of synovial membrane with formation of loose bodies within the joint space. a 28-year-old women had experienced pain of the left TMJ area at mastication. Radiographs of the left TMJ revealed calcified loose bodies in superior temporomandibular joint space. treatment consisted of removal of calcified loose bodies and synovail membrane. after surgery, pain of Lt temporomandibular area at mastication disappeared. until present after surgery there have been no recuurence of symptoms.
Fixed Prosthetic Restoration in an Edentulous Patient with
Shin, Hyoung-Joo ; Kim, Dae-Gon ; Cho, Lee-Ra ; Park, Chan-Jin ;
Journal of Dental Rehabilitation and Applied Science, volume 25, issue 3, 2009, Pages 243~253
This report described a technique utilizing a computer-aided design(CAD) /computer-aided machining (CAM) - guided surgical implant placement and prefabricated fixed complete denture for an immediately loaded restoration. A patient with an edentulous maxilla and mandible received 6 implants in maxilla and 6 implants in the mandible using CAD/CAM surgical templates. Prefabricated provisional maxillary and mandibular implant supported fixed prostheses were connected immediately after implant installation. Provisional prostheses were evaluated for aesthetics, function during 6 months. Definitive prostheses were fabricated.
Effect of Implant Length on the Immediate Loading at the Anterior Maxilla
Lee, Joon-Seok ; Kim, Myung-Joo ; Kwon, Ho-Beom ; Lim, Young-Jun ;
Journal of Dental Rehabilitation and Applied Science, volume 25, issue 3, 2009, Pages 255~265
Recently many studies have been published on application of immediate loaded implants. However, the immediate loading protocol has not been well documented. The purpose of the present study was to evaluate the stress distribution between bone-implant interfaces and the effect of implant length in the anterior maxilla using 3 dimensional finite element analyses. The diameter 4.0 mm threaded type implants with different length(8.5 mm, 10.0 mm, 11.5 mm, 13.0 mm, 15.0 mm) were used in this study. The bone quality of anterior maxillary bone block was assumed to D3 bone. Bone-implant interfaces of immediately loaded implant were constructed using a contact element for simulating the non osseointegration status. For simplification of all the processing procedures, all of the material assumed to be homogenous, isotropic, and linearly elastic. The 178 N of static force was applied on the middle of the palatoincisal line angle of the abutment with
angle to the long axis of abutment. Maximum von Mises stress were concentrated on the labial cortical bone of the implant neck area, especially at the cortical-cancellous bone interfaces. Compared the different length, highest peak stress value was observed at the 8.5 mm implants and the results indicated a tendency towards favorable stress distribution on the bone, when the length was increased. Presence of cortical bone was very important to immediate loading, and it appears that implants of a length more than 13 mm are preferable for immediate loading at the anterior maxilla.
A Retrospective Study of Survival Rate in single Brnemark
Kim, Hye-Jin ; Yang, Seung-Min ; Kye, Seung-Beom ; Shin, Seung-Yun ;
Journal of Dental Rehabilitation and Applied Science, volume 25, issue 3, 2009, Pages 267~277
Recently implant supported single crown is the popular treatment option to replace a single missing tooth. The purpose of this retrospective study was to analyze and evaluate the survival of implants with the
surface for single tooth replacement. From September 2002 to December 2006, 269
surfaced implants were used in single tooth replacements at the Institute of Oral Health Science, Samsung Medical Center. Twenty one cases were excluded because of neighbor implants, missing records & short follow up period. Among 248 implants, the 129 implants (52.0%) were inserted in the maxilla and 119 (48.0%) in the mandible. One hundred implants placement (40.3%) were combined with guided bone regeneration, and 36 implants placement (14.5%) were combined with sinus bone augmentation. Mean observation period was 26.0
11.8 months after implant placement. Twelve implants were recorded as failures, rendering a single implant survival rate of 95.2% over the observation period. Among failed 12 implants, 10 implants placed in the maxilla. The survival rate in the maxilla was 92.2% and in the mandible was 98.3%. The use of
surfaced single implant placement showed high survival rate for short time period.
Histological Study of Extraction Socket Grafted with Calcium Phosphate Materials: An Animal Study
Yang, Seung-Min ; Yoon, Hyun-Min ; Shin, Seung-Yoon ; Kye, Seung-Beom ;
Journal of Dental Rehabilitation and Applied Science, volume 25, issue 3, 2009, Pages 279~285
The purpose of this study was to evaluate histologic result of bone substituting materials on extraction sockets. We compare the histologic findings of control,
. Mandibular premolar teeth of Beagle dogs were extracted available for bone filling. All alveolar extraction sockets were thoroughly debrided with surgical curet to remove the periodontal ligament. The graft materials were filled into the extraction sockets. The animals were sacrified 90 days after implantation. Both treated and control mandibular sites were histologically evaluated with light microscopy. Histological observation at 90 days revealed that control and experimental sites were healed uneventfully without any adverse tissue reaction. Regenerated new bone formation ratio is 34.5% for control, 28.4% for
, 23.8% for
. From this results, it was suggested that
are promising bone substituting materials to promote normal tissue healing and new bone formation.
Short Dental Implants : A Literature Review and Rationale for Use
Kim, Yu-Lee ;
Journal of Dental Rehabilitation and Applied Science, volume 25, issue 3, 2009, Pages 287~292
The clinical use of several endosseous oral implants designs has become highly predictable in recent decades. Implant success critically depends both on the vertical and horizontal dimensions of the prospective host site and on the quality of the local bone. Implants shorter than 10 mm can be a long-term solution for sites with limited bone height. This article describes theoretical characteristics and clinical outcome of short implants through a medline search. When surgical preparation is related to bone density, textured-surfaced implants are employed, operators' surgical skills are developed, and indications for implant treatment duly considered, the survival rates for short implants has been found to be comparable with those obtained with longer implants.
The Effect of Alkali- and Heat-Treated Titanium Surfaces on Differentiation of Osteoblast
Kang, Choong-Hee ; Vang, Mong-Sook ; Yang, Hong-so ; Park, Sang-Won ; Lim, Hyun-Pil ;
Journal of Dental Rehabilitation and Applied Science, volume 25, issue 3, 2009, Pages 293~306
In this study, the biological response of fetal rat calvarial cells on alkali- and heat-treated titanium was assessed. The results were as follows; Cell proliferation on alkali- and heat-treated surfaces showed significantly higher level than on the titanium-6aluminum-4vanadium (weight percentage: 6 % aluminum, 4 % vanadium, Ti-6Al-4V) surface (p<0.01). In ELISA analysis, concentration of IL-1
and IL-6 were raised when the cells were grown to day 7. Pre-treatment with herbimycin, a known tyrosine kinase inhibitor, suppressed the production of IL-6 (p<0.01). In comparison to commercially pure titanium (grade II, cp-Ti) and Ti-6Al-4V alloy, alkali- and heat-treated titanium enhanced alkaline phosphatase activity (p<0.001). In RT-PCR analysis, alkaline phosphatase, bone sialoprotein, receptor activated nuclear factor ligand mRNA expression was increased alkali- and heat-treated titanium. Herbimycin and SB203580, p38 MAPK inhibitor, were repressed of IL-1
-induced IL-6 mRNA expression. These results suggest that alkali- and heat-treated titanium stimulate osteoblasts differentiation and facilitate bone remodeling.