• 대한치과의사협회지
• /
• 제58권5호
• /
• pp.304-310
• /
• 2020

Peri-implantitis refers to the development of inflammation around the implant. Peri-implantitis refers to inflammation accompanied by uptake of bone in the submucosa. Perhaps the most serious of the symptoms of peri-implantitis is the mobility of the implant. Peri-implantitis may occur more frequently in patients with periodontitis than in patients without periodontitis. Therefore, regular checkups and plaque control are more important and important when implants are placed in patients involved with gingivitis or periodontitis. There are many factors such as plaque, calculus and smoking, which can cause peri-implantitis. However, regular plaque management can prevent and reduce the incidence of peri-implantitis. In conclusion, it is important to successfully surgery implants in patients, but preventing peri-implantitis is the success of implant treatment.

• 대한치과의사협회지
• /
• 제46권5호
• /
• pp.315-322
• /
• 2008

The purpose of the present study was to determine the effect of a chewing gum containing 70% xylitol and 0.23% Curcuma xanthorrhiza extract to remove dental plaque and reduce gingivitis when used as a supplement to daily toothbrushing for 3 weeks. The study group consisted of 75 adults with moderate gingvitis. Participants were divided into 3 groups(contol 1 group - Gum base, contol 2 group - 70% Xylitol, experiment group - 70% xylitol and 0.23% xanthorrhizol) and instructed to chew the study gum for 3 times daily for 3 weeks in addition to regular daily toothbrushing. Chewing xylitol/xanthorrhizol gum significantly reduced plaque index with significant difference by week 3(p<0.01). Gingival index and bleeding on probing were decreased in xy/ Curcuma xanthorrhiza extract group by 35.9% and 31.65% each in the same period. No adverse effects on the oral tissues were observed in any of the participants for the duration of the study. In conclusion, regular use of a chewing gum containing 70% xylitol and 0.23% Curcuma xanthorrhiza extract appears safe and effective for the removal of dental plaque and reduction of gingivitis when used in conjunction with daily toothbrushing.

• 치위생과학회지
• /
• 제18권5호
• /
• pp.305-311
• /
• 2018

The purpose of this study was to identify the effect of providing toothbrushing by professionals as part of oral hygiene education for the elderly. We randomly visited 12 centers in the metropolitan city and analyzed the data of 114 participants among 310 early registrants aged >65 years, who participated in the study at all 3 time points. The subjects were categorized into an experimental group (odd-numbered visits) and a control group (even-numbered visits). Oral hygiene practices were provided for both experimental and control groups, but professional toothbrushing was performed in a different manner in the experimental group. Differences in plaque index (PI) according to the subjects' general characteristics and oral health status were assessed using the t-test, and the effect of PI difference between the experimental and control groups was assessed by repeated measure two-way analysis of variance. A stepwise multiple regression analysis was used to analyze factors affecting the PI. At baseline, the mean overall PI was 61.82. In both experimental and control groups, the PI significantly reduced from the baseline (p<0.01). At 5 weeks, the experimental group showed a decrease of 27.16 points from the baseline, and the 10-week PI was similar to the 5-week PI. The control group showed a decrease of 14.87 points from the baseline, and the PI increased by 5.74 points at 10 weeks. PI-related factors were gender and self-xerostomia. The PI was lower in the female group and the group with self- xerostomia (p<0.01). It is important to select an appropriate method to educate elderly subjects on proper removal of dental plaque and to habituate correct behavior, which requires inclusion of a direct toothbrushing intervention by a specialist.

• 한국산학기술학회논문지
• /
• 제17권1호
• /
• pp.629-637
• /
• 2016

본 연구는 구강관리행태와의 연관성과 설태지수, 치석, 스케일링 전후의 구강환경에 따른 구취변화를 알아보고자 대전광역시에 위치한 K대학교 치위생학과에 스케일링 실습을 위해 내방한 참여자 130명을 대상으로 설태지수와 구취를 조사하여 조사하였다. 모든 조사대상자에 대하여 설문조사, 설태지수와 치면세균막과 치석정도를 측정한 구강검사, 구취측정 등을 하였다. 그 결과 설태가 구취에 가장 큰 영향을 준다는 것을 확인할 수 있었고, 이러한 설태지수는 흡연과 혀 닦기와 관련이 높았다. 또한 구취는 잇솔질 횟수가 많을수록 낮은 수치를 보였고 비외과적 치료인 스케일링을 통해 구취감소의 효과가 나타났으며, 나이와 설태지수가 관련요인임을 확인하였다. 이에 적절한 구강관리를 실천하여 치태과 설태의 양을 줄이고 정기적인 스케일링을 받음으로써 구강건강증진은 물론 구취감소의 효과를 얻어야 할 것이다.

• 한국치위생학회지
• /
• 제21권5호
• /
• pp.527-533
• /
• 2021

연구목적: 본 연구는 대표적인 치아우식 유발 세균인 Streptococcus mutans(S. mutans)에 대한 전기분해 수소수의 항균효과와 치면세균막 억제 효과를 평가하기 위해 실시하였다. 연구방법: BHI 액체배지 상에서 6시간 배양한 S. mutans를 전기분해수소수에 1분 또는 3분 노출시켰다. 전기분해수소수의 증식억제 효과를 확인하기 위해 균주 현탁액을 Mitis Salivarius agar bacitracin(MSB) 배지 상에서 48시간 배양한 후 집락수를 계수하였으며, biofilm formation assay에 따라 crystal violet solution을 30분간 처리하여 치면세균막을 염색하고, 600 nm의 파장에서 흡광도를 측정하여 치면세균막 형성정도를 평가하였다. 연구결과: 전기분해수소수는 S. mutans의 증식과 치면세균막 형성을 유의하게 억제하였으며(p<0.001), 특히 치면세균막 형성의 경우 노출 시간이 증가함에 따라 치면세균막 형성도 유의하게 감소하였다(p<0.05). 결론: 수돗물 전기분해수소수는 S. mutans의 증식과 치면세균막 형성 억제를 통해 치아우식을 효과적으로 예방할 수 있다고 판단된다.

• International Journal of Oral Biology
• /
• 제41권1호
• /
• pp.39-43
• /
• 2016

Dental caries, the most common oral disease, is a multifactorial disease caused by interactions among bacteria within the dental plaque, food, and saliva, resulting in tooth destruction. Streptococcus mutans has been strongly implicated as the causative organism in dental caries and is frequently isolated from human dental plaque. Photodynamic therapy (PDT) is a technique that involves the activation of photosensitizer by light in the presence of tissue oxygen, resulting in the production of reactive radicals capable of inducing cell death. Postantibiotic effect (PAE) is defined as the duration of suppressed bacterial growth following brief exposure to an antibiotic. In this study, the in vitro PAE of PDT using erythrosine and light emitting diode on S. mutans ATCC 25175 was investigated. The PAE of PDT for 1 s irradiation and 3 s irradiation were 1.65 h and 2.1 h, respectively. The present study thus confirmed PAE of PDT using erythrosine on S. mutans.

• 대한소아치과학회지
• /
• 제45권1호
• /
• pp.32-40
• /
• 2018

본 연구는 치태의 성숙도에 따라 치태를 서로 다른 색상으로 염색하는 GC Tri Plaque ID $Gel^{TM}$(GC corporation, Tokyo, Japan)을 이용하여 치아 우식 위험도를 평가하고자 하였다. 치아 우식의 발생 및 진행과 연관된 균인 Streptococcus mutans, Streptococcus sobrinus, Lactobacillus spp.의 수를 Quantitative real-time polymerase chain reaction (qRT-PCR)로 측정하여 치아 우식 위험도를 보았다. 본 실험은 강릉원주대학교 치과병원 임상시험 심사위원회의 심의를 받고 진행하였다. 강릉원주대학교 치과병원 소아치과에 내원한 전신질환이 없는 건강한 9 - 12세의 초등학생 15명의 치면을 착색제로 염색하였다. 치태의 성숙도에 따라 서로 다른 세가지 색상으로 염색되었으며 색상별로 3개의 실험군인 I군(pink/red), II군(blue/purple), III군(light blue)으로 나누었다. 3개의 실험군에서 각각 DNA를 추출한 후, qRT-PCR을 이용하여 S. mutans, S. sobrinus, Lactobacillus spp.의 수를 측정하였다. 3개의 실험군 사이에 S. mutans, S. sobrinus와 Lactobacillus spp. 균 수의 유의한 차이가 관찰되었으며 3종류의 균 모두 III군에서 가장 많이 관찰되었다(p < 0.05). GC Tri Plaque ID $Gel^{TM}$는 기존 착색제와는 달리 치태의 성숙도에 따라 서로 다른 세가지 색상으로 염색되며, 치태 염색 색상의 차이는 치아 우식 관련 균 수의 차이를 보여주었다. GC Tri Plaque ID $Gel^{TM}$이 치아 우식 위험도를 평가하는 하나의 지표로서 사용될 수 있는 가능성을 확인하였다.

• 한국융합학회논문지
• /
• 제8권3호
• /
• pp.63-70
• /
• 2017

본 연구는 $Qraycam^{TM}$을 활용한 구강보건교육 피드백의 효과를 알아보고자 하였다. 중학교 2학년 총 118명을 대상으로 4주간 실험을 진행한 후 다음과 같은 결과를 얻었다. $Qraycam^{TM}$을 활용한 치면세균막 검사에서는 이미지로 피드백을 받은 실험군의 ${\Delta}R30$, ${\Delta}R70$, ${\Delta}R120$값 모두 통계적으로 유의하게 감소하였다(p<0.001). SPS는 실험군과 대조군 모두 중재 후에 감소하였으나 실험군에서만 통계적으로 유의한 결과가 나타났다(p<0.001). 구강보건행태에서는 칫솔질 시간이 중재 후 실험군이 대조군에 비해 유의하게 높은 결과가 나왔다(p<0.001). 주관적 구강건강상태에서는 주관적 구강건강의 중요성이 대조군에 비하여 실험군에서 통계적으로 유의하게 높았다(p<0.001). 이상의 결과를 종합해 보면 $Qraycam^{TM}$이미지로 피드백을 받은 실험군에서 치면세균막 감소효과가 컸으며, 칫솔질 시간, 주관적 구강건강의 중요성이 높게 나타났으므로 $Qraycam^{TM}$을 구강보건교육에 시각적인 피드백 도구로 활용할 수 있을 것으로 보여진다.

• 한국치위생학회지
• /
• 제12권6호
• /
• pp.1158-1164
• /
• 2012

Objectives : The aim of the present study was to measure the level of Streptococcus mutans(S. mutans), the major causative agent in dental caries, and to examine the relationship between S. mutans level and dental caries experience. Methods : The present study was carried out in 41 university students. S.mutans plaque was detected in the saliva using Dentocult$^{(R)}$-SM and was measured in absorbance. The data were analyzed in the relevance for number of dental caries experience. Results : The group of S. mutans value has progressive caries, which was higher than that of non-suffering caries(p<0.05). More caries experience showed higher value of S. mutans(p>0.05). According to the relationship with DMFT, level of S. mutans and absorbance, correlation with the level of salivary S. mutans is shown statistically highly significant (p<0.01). The level of S. mutans in saliva and plaque and absorbance is statistically significant(p<0.05). Conclusions : The levels of S. mutans in both group of high caries experience and progressive caries was highly detected, continuous oral health management should be carried out to prevent the possible dental caries.

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