• 대한소아치과학회지
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• 제31권3호
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• pp.448-452
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• 2004

외상성 교합은 교합력의 결과로서 치주조직에 가해지는 손상이다. 주된 증상은 치아의 동요도이고, 통증, 타진에 민감, 열에 민감한 증상이 동반될 수 있으며 교합력에 의해 치아가 이동을 할 수도 있다. 만성으로 진행시 치아의 과도한 교모가 나타나며 방사선학적으로 치근막 공간의 비후, 치조백선의 비후, 치조골의 방사선 투과성 치근흡수 등이 나타날 수 있다. 외상성 교합은 치주질환의 원인과 관련되어 있다. 증가된 치아동요도를 야기하며 외상성 교합 자체는 치은염과 치주낭을 발생시키지 않으나 국소적 치태와 염증이 존재하고 있는 하에서 골소실, 치주낭이 발생할 수 있다. 치은퇴축은 외상성 반월, 맥콜스 팽윤, 스틸만 균열의 형태로 나타난다. 본 증례는 하악 유견치 부위의 치주질환을 주소로 내원한 5세 남아로서 상하악 유견치의 조기 접촉에 의해 하악 좌우측 유견치의 중증도의 동요도, 교합마모, 치은 퇴축, 치조골 파괴의 증상이 나타났기에 보고하는 바이다.

• Journal of Periodontal and Implant Science
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• 제39권2호
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• pp.157-166
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• 2009

Purpose: There are numerous reports about the usefulness of antibiotics such as doxycycline or metronidazole in the conventional treatment for the patients with chronic periodontal diseases. However, seldom are the reports about effects of vitamins or nutraceuticals. The purpose of this study was to evaluate the effects of nutrient supplement including multiple vitamins and neutraceuticals with PRF-K2 from plants and seaweed in treatment of the patients with chronic periodontitis which is needed a nonsurgical or a surgical treatment by evaluating the clinical parameters and the gingival crevicular fluid volume. Methods: The systemically healthy and nonsmoking patients diagnosed with chronic periodontitis were divided into a nonsurgical group and a surgical group. They were also divided into the test group with nutrient supplements and the control group without nutrient supplements. In the nonsurgical group, the clinical parameters (probing depth, clinical attachment level, sulcus bleeding index, and plaque index) and the gingival crevicular fluid volume were checked on baseline, at 1 week, at 3 week and at 9 week after a supplement treatment. In the surgical group, the clinical parameters and the gingival crevicular fluid volume were also checked at 15 week after a surgical treatment. Results: In both nonsurgical and surgical groups, reduction of pocket depth and increment of clinical attachment level were revealed in the test group compared with the control group, but there was not statistically significant difference (p>0.05), and sulcus bleeding index was decreased with statistically significant difference (p<0.05). In addition, plaque index was decreased with statistically significant difference (p<0.05) in the nonsurgical group. Gingival crevicular fluid volume was decreased with statistically significant difference (p<0.05) at week 9 in both non-surgical and surgical groups. Conclusions: In conclusion, our results demonstrate that providing nutrient supplement in both nonsurgical or surgical periodontal treatments may improve gingival inflammation and gingival crevicular fluid.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제45권2호
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• pp.76-82
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• 2019

Objectives: To appraise the effectiveness of platelet-rich fibrin (PRF) in the management of established dry socket in terms of pain, inflammation, and wound healing. Materials and Methods: Two hundred patients with established alveolar osteitis were studied to determine the efficacy of PRF and zinc oxide eugenol (ZOE) for pain control, inflammation reduction, and wound healing. Patients were randomly allocated to Group A (PRF) or Group B (ZOE). Patients were examined on the 1st, 3rd, 7th, and 14th postoperative day and evaluated for pain using visual analogue scale scores, inflammation with a gingival index score, and wound healing through a determination of the number of bony walls exposed. Results: Group A showed better results in terms of pain remission, control of inflammation, and wound healing compared to Group B. Results between groups were statistically significant (P<0.05). Conclusion: PRF is a better alternative than ZOE for the effective management of alveolar osteitis.

• 대한치과교정학회지
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• 제27권2호
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• pp.349-357
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• 1997

동소 mRNA 보합결합법과 면역조직 화학적 염색법을 이용하여 정상 치은 상피와 염증성 치은 상피의 표피성장인자 수용체의 발현을 관찰하여 치은 상피의 염증에 있어서 표피성장인자 수용체의 역할을 연구하고, 타액에 노출되지 않는 치낭 조직에 있어서 표피성장인자 수용체의 발현을 관찰하여 다음과 같은 결과를 얻었다. 1. 동소 mRNA 보합결합법상 정상 치은 상피에서 EGFR mRNA는 거의 기저세포층에 국한되어 나타났으며, 극세포층은 약양성을 보였고 과립층과 각화층에서는 발현되지 않았다. 2. 면역조직 화학적 염색법상 정상 치은 상피에서 EGFR 단백은 거의 각화층과 과립층에 국한되어 나타났으며, 극세포층은 약양성을 보였고 기저세포층에서는 발현되지 않았다. 3. 동소 mRNA 보합결합법상 염증성 치은 상피에서 EGFR mRNA는 각화층을 제외한 전층에 걸쳐서 균일하게 분포하였다. 4. 면역조직 화학적 염색법상 염증성 치은 상피에서 EGFR 단백은 기저세포층에서 각화층에 걸쳐서 균일하게 분포하였다. 5. 치낭 조직에서는 동소 mRNA 보합결합법과 면역조직 화학적 염색법 모두에서 Malassez 상피세포 잔존물에 강하게 염색이 되었고, 그 외의 주위 조직에서는 발현되지 않았다. 이상의 결과에서 볼 때, 염증성 치은 상피에서 EGFR의 과발현과 치낭 조직의 Malassez 상피세포 잔존물에서 다량의 EGFR이 존재하는 것으로 미루어, 이는 구강 환경에 가해질 수 있는 손상에 대하여 생체의 항상성을 유지하기 위한 반응으로 여겨진다.

• 한국치위생학회지
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• 제21권5호
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• pp.499-506
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• 2021

Objectives: This case - study was conducted to assess the oral health status change of the elderly through visiting oral care interventions based on a community health care project. Methods: Professional dental hygiene treatment and oral health education, including brushing using interdental toothbrushes and sponge brushes, were performed on three senior citizens who received home visiting oral health care benefit. Results: The subject's periodontal conditions improved including gingival inflammation and bleeding. The gingival color tured pink by controlling the dental plaque. Conclusions: Visiting oral health care contributed to the improvement of oral health of the elderly. Therefore, based on the characteristics of the elderly with various systemic diseases, it is necessary to discover various cases that can perform professional and customized visiting oral health care programs.

• 대한장애인치과학회지
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• 제9권2호
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• pp.103-106
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• 2013

본 증례에서는 하악 거대 협소대가 하악 양측 유측절치에 높게 위치하여 치은 퇴축과 유치 조기 상실 및 입술의 운동 제한을 야기한 경우로, 근단변위부분층 판막술을 동반한 협소대절제술을 시행하였다. 부착치은의 양은 인접치와 유사하게 회복되었고, 제거된 소대는 정상위치에 부착되어 있었고, 해당 부위의 영구치는 정상적으로 맹출하였다.

• Journal of Periodontal and Implant Science
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• 제39권sup2호
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• pp.239-251
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• 2009

Purpose: Full-mouth disinfection enables to reduce the probability of cross contamination from untreated pockets to treated ones, for completing the entire SRP under local anesthesia with chlorhexidine as a mouth wash in two visits within 24 hours. This study aimed to compare the clinical effects of modified full-mouth disinfection (Fdis) after 6 months with those of conventional SRP (cSRP). Methods: Thirty non-smoking chronic periodontitis subjects were randomly allocated two groups. The Fdis group underwent the entire SRP under local anesthesia in two visits within 24 hours, a week after receiving supragingival scaling. A chlorhexidine (0.1%) solution was used for rinsing and subgingival irrigation for Fdis. The cSRP group received SRP per quadrant under local anesthesia at one-week intervals, one week after they had received scaling. Clinical parameters were recorded at baseline, after 1, 3 and 6 months. Results: There are significant (P<0.05) decreases in the sulcus bleeding index, and plaque index, and the increases in gingival recession were significantly smaller with Fdis after six months compared with cSRP. There was significant improvement in the probing depth and clinical attachment level for initially medium-deep pockets (4-6mm) after Fdis compared with cSRP. Multi-rooted teeth showed significantly larger attachment gain up to six months after Fdis. Single-rooted teeth showed significantly more attachment gain, 1 and 6 months after Fdis. Conclusions: Fdis has more beneficial effects on reducing gingival inflammation, plaque level, probing depth, gingival recession and improving clinical attachment level over cSRP.

• Journal of Periodontal and Implant Science
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• 제26권1호
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• pp.161-175
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• 1996

There were many reports that elevations in the levels of active and latent collagenase in gingival crevicular fluid(GCF) have been correlated positively with periodontal disease activity. To provide a simple diagnostic approach for testing GCF collagenolytic activity, the detection limit of enzyme activity was compared using radiofibril assay(Sodek et.al.1981) and spectrophotometric collagenolytic assay(Nethery et al. 1986). The detection limits of both assay for standard bacterial enzyme were similar and the radiofibril assay showed a little (1/2) lower detection limit for tad pole collagenase. To evaluate the relationship between periodontal tissue destruction and the collagenolytic activity, GCF was collected, and latent and active enzyme activities were measured by a spectrophotometric collagenolytic assay. Twelve subjects showing progressive lesions were selected according to the presence of immediate tissue destruction, frequent abscess formation, and increasing need for tooth extraction, and the absence of underlying systemic disease and previous antibiotic medication history within 6 months. Comparisons were made between sites with either: 1) inflammation with a previous history of progressive loss of periodontal tissue and bone support(2l progressive sites): 2) previous history of bone loss and periodontal destruction but now clinically stable(12 comparably stable sites); or 3) no loss of periodontal tissue and bone support(11 control sites including 5 gingivitis sites and 6 healthy sites). Active collagenase activity was the highest in the progressive sites and decreased in the order of the gingivitis sites, the stable sites, and the healthy sites. The total enzyme activity was $2{\sim}3$ fold higher in the progressive sites and the gingivitis sites, compared to the stable and the healthy sites. The ratio of active to total collagenolytic activity was twice in the progressive sites. Analysis of active collagenase level(5mU) and the ratio of active to total collagenolytic activity(0.8) as a diagnositic test indicates that these measurements have the sensitivity of 0.81 and 0.86, the specificity of 0.70 and 0.65, and the overall agreement of 0.75 and 0.73, respectively. Thus, this method has significant merits as a diagnostic tool to determine wherher the site is in a state of remission or progression.

• 대한통합의학회지
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• 제7권4호
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• pp.61-69
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• 2019

Purpose : Human gingival fibroblast cell is one of the the main cell types in periodontal tissue, which they can show anti-inflammatory activity through the production of numerous lines of inflammatory mediators such as inducible nitric oxide synthase (iNOS), cyclooxygenase (COX)-2 and interleukins. Porphyromonas gingivalis, one of the oral pathogens, has reported to play a critical role in the development of periodontal diseases. This study aimed to investigate anti-inflammatory and antioxidative activities of Gracilaria textorii ethanol extract (GTEE) in P. gingivalis derived lipopolysaccharide (LPS-PG) stimulated human gingival fibroblast (HGF)-1 cell line. Methods : In order to analyze anti-inflammatory and antioxidative activities of GTEE in HGF-1 cell line, NOS enzyme activity, expression levels of iNOS, COX-2, NAD(P)H quinone dehydrogenase (NQO)1 and their transcription factors were estimated by Griess reaction and western hybridization. Results : LPS-PG induced overexpression of iNOS and COX-2, which was significantly attenuated by GTEE treatment in a dose-dependent manner without any cytotoxicity. In addition, intracellular NOS activity was in accordance with the result of iNOS expression. Due to important role in the regulation of inflammatory responses, phosphorylated status of p65 and c-jun, each subunit of nuclear factor (NF)-κB and activator protein (AP)-1, was also dose-dependently ameliorated by GTEE treatment. One of phase II enzymes, NQO1, and its transcription factor, nuclear factor erythroid 2-related factor 2 (Nrf2), were analyzed since elevated phase II enzyme expression inhibited inflammatory response, which was significantly elevated by GTEE treatment in HGF-1 cell line. Conclusion : In conclusion, GTEE mitigated LPS-PG-stimulated inflammatory responses by attenuating NF-κB and AP-1 activation as well as accelerating NQO1 and Nrf2 expression in HGF-1 cell line. These results indicate that GTEE might be utilized a promising strategy for potential anti-inflammatory agent in periodontal diseases.

• Journal of Periodontal and Implant Science
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• 제30권4호
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• pp.911-923
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• 2000

A comparative clinical study on the ordinary toothbrush($Buttler^{(R)}$, America) and the silicone toothbrush($Jefe^{(R)}$, Korea) was performed. The volunteers who took part in this study were students of Dental college of Yonsei University and patients attending Dental Hospital of Yonsei University. They were classified into two group, control and experimental group. Control group brushed with nylon toothbrush and experimental group did with silicone toothbrush under the researcher's guidances. Volunteers were examined on Plaque Index(PI), Gingival Index(GI), Probing Depth(PD), Bleeding on Probing(BP) and Recession(R) at base line, 1st. week, 2nd. week and 4th. week. According to the results, both group have the tendency of improvement in the degrees of GI, PI and the improvement degree of GI of both group has the significant differences from base line statistically, and there are not statistically significant differences between the silicone and nylon group in respect of PI, GI values. So based on the present study, it could be carefully ascertained that the silicone toothbrush has similar effect with nylon toothbrush in respect of PI and GI. If it is sure that the silicone toothbrush is seldom abrasive and possibly enough to massage the gingiva, this new brush is worth to be recommended by the dentists.