نشریه تحقیقات دندانپزشکی
سال چهارم شماره 2 (پیاپی 8، تابستان 1394)

University as an institution promotes knowledge and supplies specialist manpower in the community, which is obliged to continually assess its current status to achieve practical solutions in order to improve the quality of education. Therefore, the present study aimed to assess studentschr('39') satisfaction from  clinical education status in the dentistry School of Yazd.

In this descriptive cross-sectional study, 205 questionnaires were completed by dental graduate students who were passing the first and second rotation in the clinical wards. The validity and reliability of the questionnaire were confirmed. The collected data were analyzed via ANOVA and T-Test applying SPSS software (ver, 17).

In this study, 83 males (40.5%) and 122 females (59.5 %) participated. Students’ satisfaction score from clinical education of college was 3.04±0.96, which was reported as moderate. The most satisfaction belonged to Pediatrics ward(3.7±0.6) and the lowest satisfaction was devoted to the orthodontics ward (2.9±1.01). Moreover, a significant relationship was observed between students’ satisfaction rate and their education term (P=0.046), though no significant relationship was reported between satisfaction rate and gender (P=0.088) as well as marital status (P=0.108).

  The present study findings revealed that students’ satisfaction from clinical education was moderate in all sectors with a low fluctuation. Hence, providing the necessary facilities, promoting university instructors and attempting to attract the patient seem to be necessitated in order to improve the status of clinical education which should be specifically taken into consideration by the educational planners.

A great number of materials are produced in order to clean and keep the complete dentures. However, scant information exists in regard with the dentists’ knowledge of these materials. Therefore, the present study was accomplished to evaluate the dentists’ knowledge regarding the denture cleansers in Yazd in 2015.

In this descriptive cross-sectional study, 113 dentists were randomly selected working in Yazd, whose knowledge of denture cleansers was assessed through  a valid and reliable questionnaire consisting of 10 questions. The study data were analyzed by SPSS (ver,17) applying t-test, and  the significance level was set as P<0.05.

In the present study, 58 female (51.3%) and 55 male (48.7%) dentists participated with a mean age of 31.71±10.43 (ranged 27-55). The average of participants’ dental work experience was reported as 9.78±7.24 Years, and the average of their knowledge score denture cleansers was recorded 9.42±4.97 (ranged 0-27). The study results revealed no statistically significant relationship between knowledge of cleansers with age (P=0.069), gender (P=0.228) as well as dental work experience (P=0.270).

Based on the findings of the present study, the dentists demonstrated a moderate level of knowledge in regard with the denture cleansers. As a result, promotion of the dentists’ knowledge seems to be necessitated via holding workshops in this regard.

Blind and deaf individuals, due to their physical disability, may encounter more problems in regard with oral and dental care. The present study aimed to compare  DMFT index mean within blind and deaf students in comparison with the healthy students.

In this descriptive cross-sectional study, 44 blind and 88 deaf students aged between  6-18 were selected via the census method. Moreover, 134 healthy subjects were randomly selected as the study controls. Permanent teeth examination was accomplished using natural light, catheter, and disposable mirror. DMFT index was utilized to assess the participants’ dental status. The study data were analyzed using SPSS software (ver, 16) via ANOVA and LSD tests. 

The mean DMFT within blind, deaf and healthy students was reported as 1.73 ±2.11, 2.86 ± 2.74 and 1.06±1.31 respectively. A significant difference was observed in DMFT index between healthy students with  the blind (P-value=0.047) as well as deaf (P-value=0.000) students. In addition, a significant difference was detected between the blind and deaf students (P-value= 0.011).

Based on the results of this study, higher values of DMFT index mean was observed in the blind and deaf individuals compared to the controls. Therefore, promotion of oral and dental care through a proper education seems to be essential within these individuals.

Oral health can prepare such activities as eating, speaking, and  convenient social encounters as well as increased quality of life. Quality of life related to oral and dental health measures the effect of body and mind on oral health, and the effect of oral and dental disabilities on daily life. This study was carried out to evaluate the relationship between oral health indices and quality of life in 14-18 year-old boy students in Yazd.

In this cross- sectional and descriptive study, three high schools were selected randomly and 273 students were evaluated. They were examined with dental mirror and explorer in natural light. We used standard questionnaire called Short Form 36 (SF36) for evaluation of life quality and DMFT and Oral Health Index-simplified (OHI-S) for evaluation of oral hygiene. Kruskal-Wallis, ANOVA test and Spearman’s correlation coefficient were used for data analysis at a confidence interval of 0.95.

In this study, mean and standard deviation of DMFT and OHI-S respectively, were (3.07±2.18) and (1.89±1.3). The quality of life in the field of physical functioning was the most and in the field of role limitation due to physical functioning was the least. Correlation between DI-S (Debris Index- simplified) with social functioning, between CI-S (Calculus Index- simplified) with the age and the educational degree of student was statistically signicant.

The results of this study showed the relation of life quality and oral hygiene, among oral health indices, CI-S and age has the highest correlation.

In the dentistry profession, since dentists and nurses are in contact with blood, mucus or infected saliva, their environment and equipment are exposed to high contamination. the prevalence of dangerous diseases among staff and patients will not be against expectations. The purpose of this study was to determine the knowledge, attitude and practice of dental nursing towards infection control and environmental health principles in the dental care centers.

This descriptive cross-sectional study was performed on 41 nurses of Dentistry School of Shahid Sadoughi University of medical sciences, Khatamolanbia and Imam Ali clinics. The data collected through a self- administered questionnaire containing questions related to knowledge, attitude and practice in the field of infection control. The data were analyzed by frequency distributions, T-test, ANOVA and correlation coefficient tests using SPSS software.

The mean score of nurse’s knowledge was 7.92±1.34 (from a scale 0-13), the mean score of attitude was 97.87±5.28 (from a scale 21-105) and the mean score of practice was 35.31±4.48 (from a scale 12-48). According to the results, there was a significant and positive correlation between knowledge with attitude and also attitude with practice (p<0.05).

  According to the results, it seems that good performance of dental nurses in this research is caused by good knowledge and attitude towards infection control and environmental health principles in the dental care centers. In order to maintain this practice level, ongoing educational programs should be codified and implemented completely.

Intracanal usage of calcium hydroxide is considered as a common method for preventing microleakage. Hence, this study aimed to evaluate the efficacy of four different calcium hydroxide preparations in preventing coronal-apical microleakage.

In this experimental  study, 70 extracted human single root canal teeth were collected. After root canal instrumentation, the teeth were divided into four  experimental groups (n=15) and two groups of positive control and negative control (n=5). The root canals were filled with creamy mixture of Calcium hydroxide via different vehicles (Normal saline, Lidocaine, Glycerin, Chlorhexidine). Five teeth were left empty to serve as the positive control group, whereas the negative control group comprised of five teeth filled with guttapercha and sealer, which their canal orifice was sealed with wax. In order to evaluate the microleakage, the samples were placed inside the designed apparatus. After being exposed to Enterococcus faecalis suspension, the samples were evaluated in regard with leakage and turbidity in the lower compartment. The statistical analysis of the recorded data was performed using SPSS16 via ANOVA and t-test.

The results of the present study revealed that microleakage reduced significantly in the calcium hydroxide group via chlorhxidine (P<0.001). Moreover, no significant differences were observed between the other groups.

Considering the amount of microleakage found in the calcium hydroxide group via chlorhexidine compared to other groups, its usage could be recommended for reducing leakage as an interappointment temporary filling material. Furthermore, conducting more studies with different calcium hydroxide preparations is suggested.

Satisfaction is a complex multidimensional phenomenon influenced by personal, psychological, social, cultural and economic factors. Health care Quality is usually defined as a set of patient satisfaction and treatment success. Patient satisfaction is a sign offering proper services that is not only the result of technology promoting, but also due to the correct behavior and good performance. The present study evaluates the patientschr('39') satisfaction from dental care services provided by the Dental Faculty of Yazd University of Medical Sciences in 2014.

This descriptive and cross-sectional study was done on 764 patients referred to Yazd dental school in 2014. Sampling was stratified by size of each class. A three part questioner including individual questions, questions about facilities & questions about dental services was designed. Data were analyzed by SPSS software, T-test, ANOVA & chi-square.

Mean age of patients was 25.11±12.08. General satisfaction from services provided, was evaluated: complete satisfaction 129 (16.89%), partial satisfaction 571(74.74%), partial dissatisfaction 52(6.8%) and complete dissatisfaction 12(1.57%). There was A significant difference between overall satisfaction with gender, age, education, marital status and place of residence (P>0.05).

As regards the results of the present study shows the patientschr('39') satisfaction from dental care services provided, in Yazd Dental School is in the desirable level and it is hoped that with solving of existing problems & improving the quality of services, the present situation can be improved.

The loss of teeth and  denture use can thoroughly affect edentulous patients’ normal activities leading to a wide range of reactions in such individuals. Therefore, this study aimed to investigate the relationship between their treatment satisfaction and quality of complete denture prosthesis, oral circumstances, and patients’ psychological conditions. 

In this descriptive cross-sectional study, 50 edentulous patients were randomly selected referring to prosthesis department of Yazd Dentistry School within 2011-2014 in order to receive complete denture prosthesis. Quality of patients’ complete denture prosthesis and their oral (mouth) conditions were determined via an examination form. Moreover, patients’ psychological conditions were detected using QHQ28 questionnaire and their satisfaction score in regard with their complete denture prosthesis was measured via the VAS scale. The study data were analyzed by SPSS (ver 17) applying Mann-Whitney test and Spearman correlation coefficient.

In the present study, 50 patients with a mean age of 61.04±8.88 were studied, among which 33 patients(66%) were males and 17(34%) were females. There was a significant negative correlation (P=0.047, rs= -0.283) between patients’ mean satisfaction score of the denture and their psychological conditions. Furthermore, a significant positive correlation was observed between satisfaction score and quality of complete denture prosthesis (P=0.001, rs=0.530), whereas a negative correlation (P=0.011,rs= -0.358) was reported in regard with oral conditions.

The findings of the current study revealed that the higher the quality of denture was, the better patients’ psychological status was, and thus, the treatment satisfaction was higher. However, no statistically significant correlation was detected between patients’ treatment satisfaction and their oral conditions.