Advance Course for Malodor Control at Dental Clinics

Shunichi Honda 대한임상예방치과학회 2007 International Journal of Clinical Preventive Denti Vol.3 No.1

Among the various treatment methods for Halitosis, here I will discuss the chart-form diagnosis method. To do this, I will make specific observations on the types of halitosis that require treatment as well s the steps for each treatment. Then I will try to establish a treatment principle by applying an in-depth chart-form dignosis method. First of all, I will make observations on selected halitosis patients and discuss the guidelines on oral sanltataion. In order to do this, I will examine the fctors that could cause halitosis to a healthy person It will then be necessary for me to look into that person °Øs diet and lifestyle. Next, I will examine that person°Øs oral tension self-control method. I will then introduce halitosis treatments specific for persons wearing prosthesis such s dentures and for those who are underage. In addition, I will also tackle counseling techniques for patients. This will bean important factor in oral sanitation guidelines. Lastly, I will sum up the causes of halitosis as claimed by actual halitosis patients, the self-control method, and the wasys to alleviate symptoms of halitosis.

Evaluation of Cross Infection Control Using Adenosine Tri Phosphate(ATP) Test in Dental Environment

Ji, Eun-Hye Shin, Woo-Young Kwon, Hyun-Jin 대한임상예방치과학회 2011 International Journal of Clinical Preventive Denti Vol.7 No.1

Objective: The objective of this study was to investigate the nature of social anxiety disorder in halitosis patients. Methods: The 472 halitosis patients were divided into genuine halitosis and pseudohalitosis groups based upon an organoleptic test. The Japanese version of the Liebowitz Social Anxiety Scale (LSAS), was used to evaluate the clinical impact of social anxiety disorder in the patients. Results: More than half of subjects had a score of 30 or more on the LSAS, indicating a high risk of social anxiety disorder; and more than 20% of subjects had a score of 60 or more on the LSAS, indicating a high risk of generalized social anxiety disorder. Pseudohalitosis patients had significantly higher “performance scores” compared to genuine halitosis patients. However, there was no significant difference in “social interaction scores” between those with genuine halitosis and pseudohalitosis. Conclusion: Halitosis patients have a high risk of social anxiety disorder, especially pseudohalitosis patients. Our results suggest that the LSAS could be a valuable screening tool for assessing social anxiety in halitosis patients.

Relationship between Social Anziety Disorder and Halitosis

Takashi Zaitsu 대한임상예방치과학회 2011 International Journal of Clinical Preventive Denti Vol.7 No.1

Objective: The objective of this study was to investigate the nature of social anxiety disorder in halitosis patients. Methods: The 472 halitosis patients were divided into genuine halitosis and pseudohalitosis groups based upon an organoleptic test. The Japanese version of the Liebowitz Social Anxiety Scale (LSAS), was used to evaluate the clinical impact of social anxiety disorder in the patients. Results: More than half of subjects had a score of 30 or more on the LSAS, indicating a high risk of social anxiety disorder; and more than 20% of subjects had a score of 60 or more on the LSAS, indicating a high risk of generalized social anxiety disorder. Pseudohalitosis patients had significantly higher “performance scores” compared to genuine halitosis patients. However, there was no significant difference in “social interaction scores” between those with genuine halitosis and pseudohalitosis. Conclusion: Halitosis patients have a high risk of social anxiety disorder, especially pseudohalitosis patients. Our results suggest that the LSAS could be a valuable screening tool for assessing social anxiety in halitosis patients.

The Effect of Cervical End Preparation Designs on Collarless Metal Ceramic Crown to the Level of IL-1β Gingival Crevice Fluid

Edy Machmud 대한임상예방치과학회 2011 International Journal of Clinical Preventive Denti Vol.7 No.1

Objective: Cervical end preparation is an important procedure in fixed partial denture, because if it is inadequate it will increase dental plaque accumulation which is the beginning of periodontal disease. The aim of this study was to analyze the effect of cervical end preparation design on collarless metal ceramic crown to the level of IL-1β in gingival crevice fluid (GCF). Methods: The study was carried out using by quasi experimental with pre and post test with contol grup design involving 48 subjects. The tooth preparation and the cervical end preparation were made with shoulder, beveled shoulder, and deep chamfer cervical end preparation. The assessment of IL-1β in GCF was measured before and 1, 7, 21 days after insertion of collarless metal ceramic crown. Results: This study showed that the increase of level IL-1β in GCF on bevel shoulder and deep chamfer was significant different compared with control group (p<0.05). Conclusion: Shoulder is a better preparation design for collarless metal ceramic crown.

The Erosion of the Tooth Enamel and the Cementum by Carbonate Beverage

Kim, Young-Hoi Lee, Ji-Young Jeong, Mi-Kyoung 대한임상예방치과학회 2011 International Journal of Clinical Preventive Denti Vol.7 No.1

Objective: This experiment was performed in order to observe the tooth erosion by intaking the carbonate beverage. Moreover, it was done to decide the proper tooth brushing time after carbonate beverage, because of the worry about the harmful for state of tooth surface, to do the toothbrusing on right after its intake. Methods: 4 extracted teeth were prepared and divided with 8 pieces, so total 32 samples of enamel &cementum were made on the resin models, sized as 0.5 mm diameter, of the windows in the resin mold. 4 groups of the carbonate beverage as cola, orange juice, 13% of sugar solution and alkaline beverage were prepared for inserting the samples at each groups. No treatment sample were in control group as group A and classified as group B for samples in each beverage for an hour, group C for toothbrushing right after an hour in each beverage and group D, for tooth brushing at one hour later after in beverage and one more hour in saliva. All sample were examined with SEM with x1000 and x3000. Results: It revealed more rough surfaces in group C than group B or group A. But less in group D. Conclusion: Toothbrushing on time right after carbonate beverage intaking may occur the erosion of the tooth enamel or cementum.

Table 1 showed that on the 7th day, there was a significant difference of the level of IL-1β in GCF between the treatment

Edy Machmud 대한임상예방치과학회 2011 International Journal of Clinical Preventive Denti Vol.7 No.2

Objective: Cervical end preparation is an important porcedure in ficed partial denture, because if it is inadequate it will increase dental plaque accumulation which is the beginning of periodontal disease. The aim of this study was to analyze the effect of cervical end preparation design on collarless metal ceramic crowm to the level of IL-1β in gingival crevice fluid (GCF). Method: The study was carried out using by quasi experimental with pre and post test with control grup design involving 48 subjects. The toothe preparation and the cervical end preparation were made with shoulder, beveled shoulder, and deep chamfer cervical end preparation. The assessment of IL-1β in GCF was measured before and 1, 7, 21 days after insertion of collarless metal ceramic crown. Results: This study showed that the increase of level IL-1β in GCF on bevel shoulder and deep chamfer was significant different compared with control group (p<0.05). Conclusion: Shoulder is a better preparation design for collarless metal ceramic crowm.

Relationship between Perceived Oral Symptoms and Oral Health Status

Seon-Ju Sim,Ji-Yoon Hwang,Yeo-Joo Yoon,Mina Park,Da-woon Jung,Ja-Young Moon 대한임상예방치과학회 2011 International Journal of Clinical Preventive Denti Vol.7 No.3

Objective: The purpose of this study was to examine the relationship between perceived oral health and oral health status. Methods: The oral examination and survey data of 219 subjects over 40 years of age were analyzed. All individuals were interviewed by self-reporting questionnaire that focused on previous diseases, vascular risk factors (hypertension, diabetic mellitus, cardiac disease), smoking and drinking habits, social history, BMI, the frequency of daily tooth brushing and the presence of regular dental visits. Dental survey was conducted in relations to the number of teeth, DMFT index, and the pocket depth. Results: 1. Better perceived oral health status was likely to rate their periodontal conditions as good with more teeth remaining and less dental caries. 2. With increasing DMFT index, perceived oral health and periodontal conditions were rated poorly with a severe dry mouth experience. 3. With high CPITN index, perceived periodontal conditions were rated poorly with less number of teeth remaining and a severe dry mouth condition. 4. In a multivariate analysis adjusted for socioeconomic status, hypertension, diabetes mellitus, frequency of daily tooth brushing and regular dental visits, the better perceived oral health status is, the lower DMFT index is. Conclusion: Self-rated oral health is a simple measure and reflects not only the objective oral status but also the socioeconomic status and the psychological effects of oral health. Thus, we should actively use the perceived oral health criteria to promote the nation's oral health.

Comparative study on caries activity test with Dentocult Kit According to dental treatment

Lee, Mi-Ra,Shin, Seung-Chul,Park, Kwang-Sig 대한임상예방치과학회 2005 International Journal of Clinical Preventive Denti Vol.1 No.1

Objectives: The purpose of this study is to understand the influence of proper dental care to caries occurrence. Methods: The author has performed Caries Activity Tests before and after supplying comprehensive dental care 36 children volunteers aged 3 to 11, at the 'K dental hospital' in Cheonan city. participated in this clinical study. Results: Salivary Buffering Capacity scores varied from score 1.72±0.81 to 2.13±0.76 (p<0.05) with the relative. score of Mutans streptococci counts decreasing from 2.13±0.96 to 1.52±0.97 as well as Lactobacilli counts decreased from 2.19±1.09 to 1.47±1.08 after comprehensive dental care was administrated (p<0.01). There was no correlation between the decayed surfaces or Caries Severity Index and Salivary Buffering Capacity. Otherwise it revealed correlation with the decayed surfaces and the activity of Mutans streptococci (p<0.05). Lactobacilli was related to both decayed surfaces and the Caries Severity Index (p<0.05). There was no relationship between the treatment supplies and Salivary Buffering Capacity before and after dental treatment (p>0.05). It revealed a reverse correlation between treatment and the variance of Mutans streptococci counts(r=-0.430, p<0.01). otherwise there was no relation with the Lactobacilli counts. In order to predict the new caries occurrence in children. Mutans streptococci tests were recommended whereas predicting the progression of caries. Lactobacilli tests were available. Conclusion: Clinically. Dentocult test were recommended in order to prevent the caries and inform proper the oral health education for children and their parents effectively.

Fluoride effect on microleakage at marginal portion of sealant

Lee, Sook Ahn, Sun-Ha Yum, Hyun-Ji Gu, Hyo-Jin Shin, Seung-Chul Cho, Ja-Won 대한임상예방치과학회 2006 International Journal of Clinical Preventive Denti Vol.2 No.1

Objectives: The authors have studied and examined the tag length and microleakage of sealant impacted on tooth enamel, with SEM findings, in order to compare the influence of sealant adaptation with resin tag formation and NaF solution. Methods: 60 extracted premolar teeth were collected and APF gel or NaF solution were applied before the sealing on the enamel surface in small block formations. Measurements were conducted on the length of the tg nd microleakages of the border areas with sealant and enamel, with SEM findings. Results : Average tag length was measured as 8.53±2.50㎛ in APF applied group and 7.64 ±1.95 ㎛ in the group with no fluoride treatment(p>0.05). Average tag length was 6.36±1.55 ㎛ in the group and 7.14±1.07㎛ in the group with no fluoride treatment(p>0.05). Compared with APF group and NaF group for tag length, the average tag length was 7.64±1.95㎛ in APF group and 6.08±0.82㎛ in NaF. There were significant differences between the two groups(p<0.05). Average length of microleakage at the border of the sealant and tooth enamel was measured as 189.67±23.33㎛ in APF group, and 23.33±43.44㎛ in the control group, without fluoride treatment(p<0.05). There was no significant difference statistically on microleakage between NaF applied group as 30.14±119.4㎛ and 57.54±242.34㎛ in the control group(p>0.05). Conclusin : It was recommended that APF application would be conducted after sealing. There was no need for sequence in NaF application to protect the sealant removal and to select NaF preferably over APF that would decrease the microleakage at the border area of the sealant contact with tooth enamel.

SEM findings on dentinal micro changes by Co2 Laser Irradiation

Kwein, hyeok-Jeong Shin Seung-Chul Cho, Ja-Won Shin, Kun-Chul, Lee, Chung-Jae Lee, Jung-Yea, Lee, Chon-Hee 대한임상예방치과학회 2007 International Journal of Clinical Preventive Denti Vol.3 No.1

Methods: The authors have experimented with CO2 laser by irradiating to dentin exposure lesion on buccal surface of the premolar teeth and observed with SEM to compare the changes of the dentinal tubules with the control group which has no treated portion at the half of the same tooth surface as experimental portion. 20 extracted premolar for orthodontic treatment were collected for the experiment and the closing degree of the dentinal tubule and thermal changes were checked with the SEM observation and thermometer. Results: There was no difference in Closing degree in micro-dentinal tubule between the experimental and control group, in case of 0.1 W energy power of CO2 laser irradiation, otherwise more closing phenomena on micro-dentinal tubules in experimental group than in control, both in over 0.3 W energy powers and in over 30 seconds of the irradiation exposure time. It revealed that the maximum temperature difference was estimated s 1.52℃, between the before and the after laser irradiation, Otherwise, more the 11.18℃ of the temperature difference was revealed, under the condition of over 1 W energy power as useless for clinical application. Conclusion: The optimum condition of CO2 laser in clinical use for the purpose of the desensitization, was recommended as under the condition from 0.3 W to 0.6 W fo the energy power and from 30 seconds to 4 minutes of the exposure time, as effective for closing the micro-dentinal tubules without thermal irritation for the pulp of the tooth.