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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Maxillofacial Plastic and Reconstructive Surgery
Journal Basic Information
Journal DOI :
Korean Association of Maxillofacial Plastic and Reconstructive Surgeons
Editor in Chief :
Volume & Issues
Volume 29, Issue 6 - Nov 2007
Volume 29, Issue 5 - Sep 2007
Volume 29, Issue 4 - Jul 2007
Volume 29, Issue 3 - May 2007
Volume 29, Issue 2 - Mar 2007
Volume 29, Issue 1 - Jan 2007
Selecting the target year
EVALUATION OF OSTEOGENIC ACTIVITY AND MINERALIZATION OF CULTURED HUMAN DENTAL PAPILLA-DERIVED CELLS
Park, Bong-Wook ; Byun, June-Ho ; Choi, Mun-Jeoung ; Hah, Young-Sool ; Kim, Deok-Ryong ; Cho, Yeong-Cheol ; Sung, Iel-Yong ; Kim, Jong-Ryoul ;
Maxillofacial Plastic and Reconstructive Surgery, volume 29, issue 4, 2007, Pages 279~288
In the present study, we focused on stem cells in the dental papilla of the tooth germ. The tooth germ, sometimes called the tooth bud, is the primordial structure from which a tooth is formed. The tooth germ consists of the enamel organ, the dental papilla, and the dental follicle. The dental papilla lies below a cellular aggregation of the enamel organ. Mesenchymal cells within the dental papilla are responsible for formation of dentin and pulp of a tooth. Tooth germ disappears as a tooth is formed, but that of a third molar stays in the jawbone of a human until the age of 10 to 16, because third molars grow slowly. Impacted third molar tooth germs from young adults are sometimes extracted for orthodontic treatment. In the present study, we evaluated the osteogenic activity and mineralization of cultured human dental papilla-derived cells. Dental papillas were harvested from mandible during surgical extraction of lower impacted third molar from 3 patients aged 13-15 years. After passage 3, the dental papilla-derived cells were trypsinized and subsequently suspended in the osteogenic induction DMEM medium supplemented with 10% fetal bovine serum, 50 g/ml L-ascorbic acid 2-phosphate, 10 nM dexamethasone and 10 mM -glycerophosphate at a density of
in a 100-mm culture dish. The dental papilla-derived cells were then cultured for 6 weeks and the medium was changes every 3 days during the incubation period. Dental papilla-derived cells showed positive alkaline phosphatase (ALP) staining during 42 days of culture period. The formation of ALP stain showed its maximal manifestation at day 7 of culture period, then decreased in intensity during the culture period. ALP mRNA level was largely elevated at 1 weeks and gradually decreased with culture time. Osteocalcin mRNA expression appeared at day 14 in culture, after that its expression continuously increased in a time-dependent manner up to day 28. The expression remained constant thereafter. Runx2 expression appeared at day 7 with no detection thereafter. Von Kossa-positive mineralization nodules were first present at day 14 in culture followed by an increased number of positive nodules during the entire duration of the culture period. Osteocalcin secretion was detectable in the culture medium from 1 week. The secretion of osteocalcin from dental papilla-derived cells into the medium greatly increased after 3 weeks although it showed a shallow increase by then. In conclusion, our study showed that cultured human dental papilla-derived cells differentiated into active osteoblastic cells that were involved in synthesis of bone matrix and the subsequent mineralization of the matrix.
A HISTOLOGICAL STUDY ON SEVERAL IMPLANTS FOR AUGMENTATION RHINOPLASTY IN MOUSE CALVARIUM
Kim, Hyun-Syeob ; Kook, Min-Suk ; Park, Hong-Ju ; Oh, Hee-Kyun ; Kim, Hyung-Seok ;
Maxillofacial Plastic and Reconstructive Surgery, volume 29, issue 4, 2007, Pages 289~300
Purpose: This study was aimed to histologically evaluate
implants for augmentation rhinoplasty after graft in the subperiosteum of mural calvarium respectively. Materials and method: Twenty four male ICR mice were used.
were grafted respectively in the subperiosteum of frontal bone. Animals were sacrificed at 1 week, 4 week and 8 week after graft. Histological observation was performed after H&E staining. Results: All groups were healed without any extrusion of implant materials and inflammatory cell infiltration. In Silicone group,
was well enclosed by thin fibrous tissue at 1 week, which became thicker and stable at 4 weeks and 8 weeks. And there was no destruction or resorption of
In Gore-tex group, there was no destruction or resorption of
. Thin fibrous tissue and cell infiltration from peripheral tissue were observed at 1 week, 4 weeks and 8 weeks. In AlloDerm group,
was enclosed by fibrous tissue. Cell infiltration was observed at 1 week, 4 weeks and 8 weeks. In Medpor group, there was no inflammation, destruction or resorption of
and it was contacted directly to the bone without interposition of fibrous tissue. Porous area was filled by bone or soft tissue. Conclusion: These results suggest that
graft are more stable than
graft and that
are appropriate for graft on nasal tip and
is appropriate for graft on nasal dorsum.
THE EFFECT OF THE RECIPIENT SITE DEPTH AND DIAMETER ON THE IMPLANT PRIMARY STABILITY IN PIG'S RIBS
Lim, Jin-Su ; Kim, Hyun-Syeob ; Kook, Min-Suk ; Park, Hong-Ju ; Oh, Hee-Kyun ;
Maxillofacial Plastic and Reconstructive Surgery, volume 29, issue 4, 2007, Pages 301~308
Purpose: This study was performed to compare and evaluate the effect of recipient site depths and diameters of the drills on the primary stability of implant in pig's ribs. Materials and methods: An intact pig's rib larger than 8 mm in width and 20 mm in height; RBM(resorbable blasting media) surface blasted
and 8.0 mm long USII Osstem Implants (Osstem Co., Korea) were used. To measure the primary stability,
(Simens AG, Germany) and
(Model 6 Resonance Frequency Analyser: Integration Diagnostics Ltd., Sweden) were used. They were divided into 6 groups according to its recipient site formation method: D3H3, D3H5, D3H7, D3.3H3, D3.3H5, D3.3H7. Each group had, as indicated, 10 implants placed, and total 60 implants were used. The mean value was obtained by 4-time measurements each on mesial, distal, buccal, and lingual side perpendicular to the long axis of the implant using
. For statistical analysis one-way ANOVA was used to compare the mean value of each group, and the correlation between placement depths and the primary stability, and that of measuring instruments was analyzed using SPSS 12.0. Results: The primary stability of the implants increased as the placement depths increased (p<0.05), and showed a proportional relationship (p<0.01). The primary stability increased when the diameter of the recipient site was smaller than that of the implant but with no statistical significance. There was a strong correlation between
(p<0.01). Conclusion: These results suggest that increasing the placement depth of implants enhances the primary stability of implant.
COMPARATIVE STUDY OF REMOVAL EFFECT ON ARTIFICIAL PLAQUE FROM RBM TREATED IMPLANT
Park, Jae-Wan ; Kook, Min-Suk ; Park, Hong-Ju ; Shet, Uttom Kumar ; Choi, Choong-Ho ; Hong, Suk-Jin ; Oh, Hee-Kyun ;
Maxillofacial Plastic and Reconstructive Surgery, volume 29, issue 4, 2007, Pages 309~320
Purpose: This study was to evaluate the removal effect on artificial plaque from RBM treated implant surfaces that are exposed due to peri-implantitis. Materials and methods: Artificial plaque with Streptococcus mutans and acquired pellicle adhered to RBM treated implant discs. Study materials divided into one control and six test groups. In test groups, physical and chemical methods used to remove plaques. Prophyflex, Professional Mechanical Tooth Cleaning (PMTC) and interdental brush as mechanical treatments and 0.1% Chlorhexidine, Citric acid, HCl tetracycline as a chemical treatment were used. To analyses the study, disc weight was measured for remaining plaque quantities and SEM(Scanning Electronic Microscope) findings was taken for evaluation of surfaces. Results: 1. In weight changes, there was significant difference between each treatment group and the control group (p<0.05). Therefore all treatment methods using this study have good ability for remove plaques. 2. In weight changes, there was no significant difference between mechanical and chemical group, and there were no significant differences between each groups (p>0.05). 3. SEM findings after mechanical treatment disclosed as follows; Prophyflex group looked like sound implant surface, and there were some paste on implant surface at PMTC group, and there were some artificial plaque at interdental brush group. 4. SEM findings after chemical treatment disclosed as follows; there were some dark lesions which were supposed as the product from Streptococcus mutans at Chlorhexidine, Citric acid and HCl tetracycline groups. Conclusion: All six methods using in this study have good ability to remove artificial plaque on RBM treated implant. According to SEM findings, prophyflex is a superior method for removing of dental plaque among test groups.
AERODYNAMIC STUDY WITH AND WITHOUT WEARING SLEEP SPLINT FOR SNORING
Jeong, Kil-Jung ; Leem, Dae-Ho ; Lee, Jong-Seok ; Baek, Jin-A ; Ko, Seung-O ; Shin, Hyo-Keun ; Kim, Hyun-Ki ;
Maxillofacial Plastic and Reconstructive Surgery, volume 29, issue 4, 2007, Pages 321~328
If there are problems for us to sleep, we are faced with fatigue and dizziness in the day. Snoring and OSAS (obstructive sleep apnea syndrome) during sleeping are the main cause of sleep disorder. Treatments through surgical method and sleep splint can be performed to treat snoring and OSAS. Relapse of snoring and OSAS is common after treatment by surgical method. But, Recently sleep splint is frequently applied to treat snoring and OSAS with surgical treatment, because it is convenient and conservative. Sleep splint treat snoring and OSAS by ensuring airway through nose. As first step of fabrication occlusal bite is gained at a point that patient get feeling of increased nasal breathing in supined position, and next, the bite is transfered to sleep splint. This study surveyed the effect of sleep splint by questionnaire to the out-patients (the Dept. of Oral and Maxillofacial Surgery, Chonbuk National University Hospital) weared sleep splint and their partners, secondarily measured airflow through nose by aerophone II after wearing sleep splint and finally evaluated the effect of treatment of snoring and OSAS by sleep splint. The obtained result were as follows; 1. Though 'sleep splint' couldn't eliminate fundamental problems of snoring, it could improve the symptoms when patients were selected could using the 'Nakagawa's respiration method'. 2. Patients who used the sleep splint could breathe stably when patients are sleeping stably. Wearing a 'sleep splint' improved airflow by expanding the upper airway. 3. Even though sleep splint can be made with variable materials, the patients expressed the most satisfaction on the splint with '0.75mm hard shell'. 4. The 'Herbst' may allows the mandible to move the TMJ to relax. Nevertheless, some patients experienced a discomfort or irritation. 5. In Snoring and OSAS cases, it is recommended that patients should first explore non-surgical options prior to choosing a surgical treatment.
THE RELATIONSHIP BETWEEN THE SYMPTOMS OF THE PATIENTS AND POST-SURGICAL APPLICATION OF ANTIBIOTICS IN ORTHOGNATHIC SURGERY
Kang, Sang-Hoon ; Yoo, Jae-Ha ; Yi, Choong-Kook ;
Maxillofacial Plastic and Reconstructive Surgery, volume 29, issue 4, 2007, Pages 329~332
This study compared and evaluated the variation of patients' symptoms depending on whether or not antibiotics had been used in the recovery period after the orthognathic surgery. 28 patients, with no particular medical history, were divided into two groups on the basis of whether antibiotics had been applied after the orthognathic surgery. All patients had been operated on maxilla and mandible simultaneously and were investigated with any symptom changes within the postoperative 4 days. Among the symptoms that could follow after the orthognathic surgery, 6 symptoms were checked every 24 hours on 5 points basis. Phases of each symptom improvements were checked and analyzed by ANOVA statistical method. Aspects of symptom changes according to application of antibiotics showed no statistical significance. Symptoms, except for swelling, showed continuous improvements after the surgery. Swelling increased until postoperative
, and then started to decrease. This study shows that post-surgical use of antibiotics has no significance provided that post-surgical infection had not occurred.
IMPLANT INSTALLATION AFTER GUIDED BONE REGENERATION: COMPARISON BETWEEN IMMEDIATE AND DELAYED GROUP
Kim, Young-Kyun ; Yun, Pil-Young ; Im, Jae-Hyung ; Hwang, Jeong-Won ; Lee, Hyo-Jung ;
Maxillofacial Plastic and Reconstructive Surgery, volume 29, issue 4, 2007, Pages 333~339
Adequate bone quantity is one of the important factor to obtain osseointegration after implantation. Guided bone regeneration (GBR) has widely used in implantation for reconstruction of bony defects. Since introducing this procedure, there are many studies about survival rate of implants, changing in surrounding bone volume after function. The purpose of this study was to evaluate the amount of resorption according to placement timing and survival rate after function. The subjects were patients who had been operated with GBR from Jun 2003 to Jun 2004 in Seoul National University Bundang Hospital. They were divided into simultaneous and delayed placement group. The follow up had been performed at the time of just after GBR, 1, 3, 6, 12, 24-month later and standard periapical radiographs were taken to estimate the bone level at the time. The total average of bone level change in radiographs was 1.94mm(
), and 1.92mm(
) in simultaneous installation, 2.03mm(
) in delayed installation. In this report, the survival rates were 92.2% in simulataneous group and 92.3% in delayed group. Insufficient primary stability, early contamination of wound, overloading, poor oral hygiene, and infection were thought to be associated factors in the failed cases.
OSTECTOMIES FOR MANDIBULAR ANGLE REDUCTION: A SYSTEMATIC REVIEW AND A REPORT OF CASES
Park, Jun-Woo ; Choi, Jin-Young ; Kim, Hyung-Wook ; Kim, Jong-Sik ; Choung, In-Won ; Kang, Jin-Han ; Hong, Soon-Min ;
Maxillofacial Plastic and Reconstructive Surgery, volume 29, issue 4, 2007, Pages 340~352
In this systematic review on bone reduction procedures for the correction of the prominent mandibular angle, we collected and sorted the methods. The strength and weakness, indication, complication, and final esthetic result of each method were evaluated. After searching and filtering the literatures on the base of inclusion criteria, 9 eligible case series studies were included in this study. There were 3 types of curved ostectomies and 4 types of lateral cortical ostectomies. Surgical procedures for curved ostectomies were divided into 2 types. One was single curved ostectomy and the other was multistaged curved ostectomy. Lateral cortical ostectomies reported were all similar to sagittal split ramus osteotomy. The complications reported in the included studies were scarce, but curved ostectomies may be able to induce many complications. The prominent mandibular angle must be analyzed in the lateral dimension and frontal dimension, and curved ostectomy can reduce the mandibular angle laterally while lateral cortical ostectomy can reduce the bigonial distance frontally. Because curved ostectomies can induce complications and unnaturally large mandibular angle while can not reduce bigonial distance efficiently, the current trend for the angle reduction procedure is lateral cortical ostectomies.
COMPLICATIONS AFTER DENTAL IMPLANT SURGERY WITH ILIAC BONE GRAFT ; CASE REPORT
Choi, Young-Jun ; Choi, Won-Cheul ;
Maxillofacial Plastic and Reconstructive Surgery, volume 29, issue 4, 2007, Pages 353~360
In a one-stage approach, where the implant installation is performed simultaneously with the iliac bone graft, various complications are observed. The observed complications are as follows; severe bone resorption at the maxillary anterior region and the area adjacent to the nasal cavity, shortage of soft tissue to cover the augmented alveolar bone, difficulties with oral hygiene care caused by the diminished vestibular space and non-esthetic prosthesis. These are good reasons for choosing the two-stage approach over the one-stage approach in spite of all the advantages it has, and should be taken into careful consideration when diagnosing and planning treatment using the one-stage approach.
RECONSTRUCTION OF LOWER LIP DEFECT USING THE ABBE-ESTLANDER FLAP : A CASE REPORT
Lee, Jong-Min ; Oh, Jung-Hwan ;
Maxillofacial Plastic and Reconstructive Surgery, volume 29, issue 4, 2007, Pages 361~365
The reconstruction of perioral defects following resection of cancer on the perioral region has been a challenge for oral and maxillofacial surgeons. Surgical management of oral squamous cell carcinoma (SCC) typically involves resection of the carcinoma with a 1cm margin of normal appearing tissue. A large surgical defect is often encountered. The goals of perioral reconstruction are esthetics and function, with oral competence and good lip control. Abbe described the operation that bears his name in 1898, when he reported on the repair of a "conspicuous deformity" in a 21-year-old man born with bilateral cleft lip and palate. Since that time, Abbe flap reconstruction has been used more frequently for repair following resection of malignancies. Large defects of the lips have been repaired with recent modifications of the Abbe flap. The technique has been popularized by Estlander for reconstruction of the lower lip. We have treated 70-year-old male patient with SCC on lower lip using Abbe-Estlander flap. Postoperatively the results showed good prognosis. So we report the result of its treatment and case with review of literatures.
REVIEW OF METHODS FOR PROCESSING ALLOGRAFTS FOR ALVEOLAR BONE RECONSTRUCTION
Lee, Eun-Young ; Kim, Kyoung-Won ; Um, In-Woong ;
Maxillofacial Plastic and Reconstructive Surgery, volume 29, issue 4, 2007, Pages 366~371
Evaluation of the methods of processing allogenic bone must be considered in order to make an effective choice of graft materials in oral surgery. Allograft materials processed by the tissue banking industry have varying capacities of bone reconstruction. The biological function of processed bone can be affected by many factors, like particle size, processing parameters, and inclusion or exclusion of mineral and moisture. For example, freeze drying step offers a safe and economical means for packaging, shipping, storage, and preservation of homologous bone. Demineralization of cortical bone using hydrochloric acid can produce a uniform demineralized surface with a capacity for osteoinduction. The objectives of this review were to evaluate the processing methods for allogenic bone and to characterize processed materials for grafting. It is important to understand the biological, biomechanical healing of different types of allografts to make the right choice for allogenic bone on each clinical application and to achieve a successful outcome for alveolar bone reconstruction in oral surgery.