• Journal of Oral Medicine and Pain
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• v.19 no.1
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• pp.73-91
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• 1994

The author used rabbits in order to examine the effect of Ga-As low power generating semiconductor laser on artificially produced injuries of experimental animals. Artificially produced injuries include surgical wound of 3mm length, 2mm depth in size on ventral skin surface of rabbit and buccal mucosa, and electrical injury formed on opposite side of skin and buccal mucosa by electrical cauterization of same length and depth, and chemical injury formed by FC(Formocresol) solution applied on the anterior dorsal part of tongue. And then, on the experimental group, Ga-As laser was irradiated beginning on the day after the wound formation and continued to irradiate every each other day for five minutes. After1, 3, 6, 9, 13th day, certain number of animals of control and experimental group were sacrified, and wound site tissue was excised to make samples and was observed under light microscope. The following is the conclusions after comparing the healing procedure of experimental and control group. The following results were obtained : 1. Inflammation was decreased more rapidly in the experimental group than the control group. 2. In the surgical, the electrical and the chemical injuries in the oral mucosa, re-epithelialization was completed more rapidly in the experimental group than the control group. In the electrical injury on the skin, re-epithelialization was completed about 6 days after wound formation on both groups. 3. In the electrical and the surgical injuries on the oral mucosa, granulation tissue formation started at 3 days after injury on both groups, but in the chemical injury, it was completed about 3 days faster in the control group than the experimental group. In the surgical wound on the skin, it was completed about 9 days after injury, but faster in the experimental group. In the electrical injury on the skin, it was faster in the control group than the experimental group. 4. In the electrical and the surgical injuries on the oral mucosa, fibrosis was started at 6~9 days after injury on both groups, but regeneration of connective tissue in the experimental group was observed much more than the control group. 5. When comparing the effect of wound healing on skin and oral mucosa of control and experimental group, granulation tissue formation and re-epithelialization in the oral mucosa was more vigorous. In conclusion, the difference of timing and the sequence of wound healing process(inflammation, re-epithelialization, granulation tissue formation, fibrosis) following Laser irradiation between control and experimental group was not observed, but the healing tissue was observed much more in the Laser irradiated group.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.33 no.5
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• pp.511-517
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• 2007

Purpose: The aim of this study is to determine whether a difference in the amount of bone graft material is needed between edentulous patients and dentulous patients and to calculate the amount of augmentation for a sinus lift procedure. Methods: 19 patients(20 sinuses) were included to measure maxillary sinus volume. Facial CT scanning was performed using MX 8000 IDT CT devices(Philips, USA). And it was used for IDLvm(The IDL Virtual Machine) 6.0, CT Volume Analyzer Ver 2.3 program to measure maxillary sinus volumes Results: At edentulous patients, volumes(mean${\pm}SD$) of the inferior portion of the sinuses were $0.56{\pm}0.13cm^3$(5mm height), $2.35{\pm}0.57cm^3$(10mm height), $4.85{\pm}1.10cm^3$(15mm height). At dentulous patients, volumes(mean${\pm}SD$) of the inferior portion of the sinuses were $0.41{\pm}0.18cm^3$(5mm height), $1.76{\pm}0.42cm^3$(10mm height), $3.80{\pm}0.84cm^3$ (15mm height). A significant correlation was found between augmentation height(5mm, 10mm, 15mm) and the calculated sinus volume.(p=0.027, p=0.018, p=0.044) Conclusions: A significant correlation was found between augmentation height(5mm, 10mm, 15mm) and the calculated sinus volume. Detailed preoperative knowledge of sinus lift augmentation volume is helpful in determining the appropriate amount of the bone graft material.

• Journal of Korean society of Dental Hygiene
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• v.12 no.6
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• pp.1232-1240
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• 2012

Objectives : In this study, the treatment method for some college students, due to the misuse of non-therapeutic molding technique non-therapeutic procedure is applied in orthodontics or jaw surgery and therapeutic purposes, such as to properly recognize and to investigate whether. Methods : In this study used, 4 questions, the questionnaire general characteristics (such as gender, major, whether the treatment experience and purpose) Orthodontic and knowledge about the jaw surgery (Corrective jaw surgery hope and reason, or jaw surgery benefits, side effects, etc.) 6 items, calibration and recognition jaw surgery on seven items 17 items was constructed. Results : Of the perception of the majors of the respondents according to the presence or absence of a non-therapeutic procedure for calibration or jaw surgery the correct way, and the purpose appeared to know roughly majors and all students majoring statistically significant (p<.001). The degree of recognition for non-therapeutic procedures according to the gender of the respondents' facial aesthetic improvement, and the most common reason, you want to make a non-therapeutic procedure, correction or contrast, I've found that looks supremacist influence on the non-therapeutic procedure or roughly know the correct way, and jaw surgery for the purpose that appeared to be statistically significant (p<.05). Conclusions : Non-therapeutic procedure for the interest and knowledge to promote oral health as well as esthetic improvements to the original non-therapeutic procedure for therapeutic purposes and how to deliver education and it is very important.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.18 no.3
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• pp.160-167
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• 2015

Purpose: We aimed to analyze the effectiveness and safety of low-dose midazolam and ketamine combination for upper gastrointestinal endoscopy (UGIE) in children. Methods: The study included the children (n=425, $10.78{\pm}3.81years$) who underwent UGIE for diagnostic purpose during 1 year period. All children were sedated with low dose midazolam (0.1 mg/kg) and ketamine (0.5 mg/kg) intravenously. Effectiveness of the sedation and complications during the procedure and recovery period were recorded. Results: Endoscopic procedure was successfully completed in 414 patients (97.4%; 95% confidence interval, 95.8-98.9). $Mean{\pm}standard$ deviation (SD) duration of procedure was $6.36{\pm}1.64minutes$ (median, 6.0 minutes; range, 4-12 minutes). Minor complications occurred during the procedure in 39.2% of the patients. The most common complication was increased oral secretion (33.1%). No major complications were observed in any patient. Age and Ramsay sedation scores of patients with complications during the procedure were lower than the others ($9.49{\pm}4.05years$ vs. $11.61{\pm}3.43years$, p=0.002 and $2.10{\pm}1.46$ vs. $4.37{\pm}1.16$, p=0.001). Mean recovery time was 22 minutes (range, 10-90 minutes; $mean{\pm}SD$, $25{\pm}12.32minutes$). Minor complications developed during recovery in 60.1% of the patients. The most common complication was transient double vision (n=127, 30.7%). Emergence reaction was observed in 5 patients (1.2%). Conclusion: The procedure was completed with high level of success without any major complication in our study. Combination of low-dose midazolam and ketamine is a suitable sedation protocol for pediatric endoscopists in UGIE.

• Journal of Periodontal and Implant Science
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• v.32 no.3
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• pp.565-576
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• 2002

The ultimate goal of periodontal therapy is the regeneration of periodontal tissue which has been lost due to destructive periodontal disease. To achieve periodontal regeneration, various kinds of methods have been investigated and developed, including guided tissue regeneration and bone graft. Bone graft can be catagorized into autografts, allografts, xenografts, bone substitutes. And materials of all types have different biological activity and the capacity for periodontal regeneration, but ideal graft material has not been developed that fits all the requirement of ideal bone graft material. Intensive research is underway to identity, purify, synthesize a variety biologic modulators that may enhance wound healing and regeneration of lost tissues in periodontal therapy. The present study evaluates the effects of ABM/P-15 on the periodontal regeneration in intrabony defects of human. We used thirty four 2-wall or 3-wall osseous defects in premolars and molars of chronic peridontitis patient that have more than 5mm pockets and more than 3mm in intrabony defect. 12 negative control group underwent flap procedure only, 11 positive control group received DFDBA graft with flap procedure, and 11 experimental group received ABM/P-15 graft with flap procedure. The changes of probing pocket depth, loss of attachment and bone probing depth following 6months after treatment revealed the following results: 1. The changes of probing pocket depth showed a statistically significant decrease between after scaling and 6months after treatment in negative control(2.0${\pm}$0.9mm), positive control(3.0${\pm}$0.9mm), and experimental group (3.4${\pm}$1.5mm) (P<0.01). Significantly more reduction was seen in experimental group compared to negative control group (P<0.05). 2. The changes of loss of attachment showed a statistically significant decrease between after scaling and 6months after treatment in positive control(2.0${\pm}$0.6mm), and experimental group (2.2${\pm}$l.0mm) except negative control group(0.1${\pm}$0.7mm) (P<0.01). Significantly more reduction was seen in both experimental and positive control group compared to negative control group(P<0.05). 3. The changes of bone probing depth showed a statistically significant decrease between after scaling and 6months after treatment in positive control(2.7${\pm}$l.0mm), and experimental group (3.4${\pm}$1.3mm) except negative control(0.l${\pm}$0.9mm) (9<0.01). Significantly more reduction was seen in both experimental and positive control group compared to negative control group (P<0.05). The results suggest that the use of ABM/P-15 in the treatment of periodontal intrabony defects can reduce loss of attachment and bone probing depth more than flap operation only. It suggests that ABM/P-15 may be an effective bone graft material for the regeneration of periodontal tissue in intrabony defects.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.17 no.2
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• pp.191-194
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• 1995

We describe here a method of approaching the maxillary sinus using an osteoperiosteal flap. Like the Caldwell-Luc procedure, the method allows an easy access to the sinus and an adequate visualization. But in addition, it appears to have the advantages of preventing the ingrowth of soft tissue through the osseous defect into the sinus by replacing the bone trap door while promoting healing and retarding infection by preserving the blood supply to the door.

• The Journal of the Korean dental association
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• v.52 no.6
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• pp.354-362
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• 2014

With the development of digital dentistry, various intra-oral scanners which acquire intraoral image without conventional impression taking and stone pouring steps have been introduced. Fixed dental prostheses such as inlay, onlay, crown, and bridge fabricated by CAD/CAM technique combined with digital impressions is getting popular due to the recent rapid progress of digital impression taking system. In comparison with traditional prosthetic procedure, the advantages of intraoral image acquiring and CAD/CAM technique are as follows; the omission of conventional impression materials, reduced workflow step, and increased efficiency by online communication with clinic and laboratory. This review article covers some opinions about the suitable scanning procedures for the various prosthodontic treatments and the utilization of digital intraoral scanner and CAD/CAM system.

• Journal of The Korean Dental Society of Anesthesiology
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• v.12 no.4
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• pp.223-227
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• 2012

Autism patients in general have bad oral hygiene. It is hard for autism patients to get dental treatment as poor communication. Therefore, they may have to be treated by deep sedation or general anesthesia in numerous cases. However, this process requires induction with mask, so it is not easy to do for disobliging autism patient. Midazolam is a water-soluble benzodiazepine, has been used in pediatric dentistry or dentistry for the handicapped because of rapid onset. Midazolam can be administered through oral, rectal, intramuscular,intravenous, and intranasal (IN) routes. IN route of midazolam may be considered as effective way to allay for uncooperative autism patients before general anesthesia. In this case report, two autism patients required dental treatment. Intranasal spray of midazolam before general anesthesia was safe and effective procedure of behavioral management.

• Journal of Physiology & Pathology in Korean Medicine
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• v.24 no.5
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• pp.866-871
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• 2010

The antidiabetic effects of Rosa rugosa Radix were investigated in streptozotocine-induced diabetic rats. Research methods and procedure: In the present study, effects of oral administration of Rosa rugosa Radix extract(100, 250, and 500 mg/kg body wt.) for 28 days on the level of serum glucose, total cholosterol, triglycerides, cereatinine, aspartate amino transferase(AST) and alanine amino transferase(ALT) in normal and streotozotocine-induced diabetic rats were evaluated. Oral administrations of the Rosa rugosa Radix extract significantly decreased serum glucose, total cholesterol, triglyceride, AST, and ALT levels, while increased serum insulin and HDL-C in diabetic rats(p<0.05). The hypoglycemic effect of the Rosa rugosa Radix extract was more effective than normal group. It is concluded that the Rosa rugosa Radix must be considered as excellent candidate for future studies on diabetes mellitus.

• Korean Journal of Cleft Lip And Palate
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• v.10 no.2
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• pp.97-108
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• 2007

For many years a wide variety of surgical techniques for closure of cleft lip has been used. Still many surgeons prefer the Millard's rotation-advancement lip repair because the surgical scar is masked in the philtral crest and the nostril floor, and it improves the relationship of the alar base of the cleft side, producing harmonious symmetry of the nostril and the nostril sill. In addition, it uses and preserves the lip anatomy, returning lip tissue into its normal position, minimizing the amount of tissue that is discarded, and reconstructing the orbicular oris muscle. One of the major disadvantages of this procedure is the lack of accurate measurements. The object of this study is to help in the cleft lip surgery with investing its features and design.