Objective: To find the mostly used type of finish line for each types of full coverage crown.

Methods: an initial search was conducted from PubMed database and Wiley Online Library to evaluate article about finish line and material types of full coverage crown. The keywords used were “finish line” and “fixed prosthodontics”. The initial results of this search were 175 articles. Preferred Reporting Items for Systematic reviews and Meta-Analysis (PRISMA) guidelines and Population/Problem, Intervention, Comparison/Control, and Outcome (PICO) questions were used for manual selection. After manual selection, there were only 4 articles that met the inclusion criteria, focusing on the number of each type of materials for full coverage crown.

Results: From these 4 articles, two were in vivo study and another two were in vitro study, with a total samples 140. The samples used in those articles were all-ceramic, all-metal, and zirconia crowns. Two articles did not mention about instrument (bur) and only 3 articles mention about impression materials.

Conclusion: in all-metal and all-ceramic crown articles, chamfer finish line were mostly used, but, in zirconia crown article, both rounded shoulder and shoulder-less/knife-edge were equally used.

Objective: The purpose of this study is to describe the distribution of the awareness level of orthodontic treatment in students of 111 Public Junior High School, Jakarta and to compare it between male and female subjects.

Material and Methods: A cross-sectional study was held to 107 students aged 12-14 years old in 111 Public Junior High School, Jakarta. This study was analyzed using univariate and Mann-Whitney analysis with a 95% confidence level.

Results: The awareness level of most students is moderate (45.8%), followed by high level of awareness (33.6%) and low level of awareness (20.6%). The median and range of the total score in female subjects are 28 (14-34), while in male subjects, the median and range are 24 (13-34). There is significant difference of orthodontic treatment awareness between male and female subjects (P = 0.028).

Conclusion: The awareness level of orthodontic treatment in early adolescents is moderate. Female subjects have higher level of awareness about orthodontic treatment than male subjects.

Objective: To determine the differences in blood pressure of female patients aged 26-45 years with normal Body Mass Index (BMI) and obesity after administration of local anesthetic containing adrenaline before dental extraction in the Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Universitas Sumatera Utara.

Material and Methods: This was an experimental study with a single group pretest-posttest design. Simple random sampling was used to select the subjects. 32 female patients aged 26-45 years participated in this study. 16 female patients with normal BMI and 16 female patients with obesity visited the clinic for dental extraction in the Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of North Sumatera. Blood pressure of each subject was measured before and after administration of anesthesia. Data obtained was statistically analyzed using Dependent T-test.

Results: Systolic blood pressure between normal and obese subjects after administration of local anesthetic with adrenaline 1:80000 showed significant differences (p<0.05). Diastolic blood pressure between normal and obese subjects after administration of local anesthetic with adrenaline 1:80000 showed no significant differences (p>0.05).

Conclusion: Administration of local anesthetic with adrenaline 1: 80000 can increase the blood pressure in obese patients and patients with normal BMI. Obese subjects are more prone to higher diastolic and systolic blood pressure changes compared to subjects with normal BMI.

Objective: The purpose of this study was to determine whether there is a difference in the width of the maxillary sinus between male and female students of the Minang ethnic group, Faculty of Dentistry, Baiturrahmah University, seen from panoramic radiographs.

Material and Methods: This study is an analytical study with a sample size of 50 respondents using purposive sampling method. The data analysis is displayed using the frequency distribution table and the significance level using the SPSS program with the independent t-test.

Results: The results showed that the mean value of the width of the right maxillary sinus in men was 35.06 mm (CI 1.7381 ± 6.4219), while in women it was 30.98 mm (CI 1.7378 ± 6. 4232). The mean value of the left maxillary sinus width in men was 35.38 mm (CI 2.6736 ± 6.6464), while in women it was 30.72 mm (CI 2.6732 ± 6.6469).

Conclusion: The conclusion of this study is that there is a significant difference between the width of the maxillary sinuses of men and women in Minang ethnic students, Faculty of Dentistry Baiturrahmah University with a p value <0.05.

Objective: The aim of analyze and improve the service innovation at Hasanuddin University Dental and Oral Hospital through the use of the knowledge management system.

Material and Methods: The instrument used in data collection was a questionnaire. There are two variables in this study, namely the independent variable is knowledge generation, knowledge storage, knowledge diffusion, knowledge application and the dependent variable is service innovation.

Results: An effect knowledge generation on increasing service innovation (p = 0.000) with an R coefficient value square of 0.392, there was an effect of knowledge storage on increasing service innovation. (p = 0.000) with an R coefficient value square of 0.285 there is an effect of knowledge diffusion on increasing service innovation (p = 0.000) with an R coefficient value of 0.374, and there is an effect of knowledge application on increasing service innovation (p=0.000) with an R coefficient value. amounting to 0.176. It is recommended that the hospital management pay attention to and optimize the knowledge application at the Hasanuddin University Dental and Oral Hospital.

Conclusion: This study is that there is an effect of knowledge generation, knowledge storage, knowledge diffusion, and knowledge application on improving service innovation at Dental Hospital Hasanuddin University.

Objective: To determine the effect of Low Intensity Pulse Ultrasound (LIPUS) on the neutrophil function and epithelial thickness after skin excision in diabetes mellitus type 2 rats’ model (an Immunohistochemistry Study on Matrix Metalloproteinase-9).

Material and Methods: Thirty-six Sprague dawley rats were divided into six groups: DM2, DM4, DM7, DML2, DML4, and DML7, each of which consist of 6 rats. Rats that matched the inclusion criteria were made into diabetes mellitus type 2 by injecting Nicotinamide and Streptozotocin. In all rat’s excision wound was made with punch biopsy in the back area. DML group received LIPUS therapy in the wound area (frequency: 3 MHz, intensity: 0.5 W/cm2, duty cycle: 20%, duration: 3 minutes every day) for two days (DML2), four days (DML4) and seven days (DML7). In the wound tissue an immunohistochemical examination was performed with Polyclonal Antibody MMP-9 to observe MMP-9 expression and and Periodic Acid-Schiff staining to observe epithelial thickness.

Results: Two-Way ANOVA and Post-Hoc LSD test showed lower level of MMP-9 expressions in the DML group than in the DM group, whereas the epithelial thickness in the DML group was found higher than in the DM group. The Pearson test showed a correlation between the level of MMP-9 expressions and epithelial thickness (p=0.000; r=-0.785).

Conclusion: LIPUS therapy reduced MMP-9 expression and increases epithelial thickness.

Objective: The purpose of writing this case report and literature review is to discuss the management of therapy in covid-19 patient with odontogenic abscess in the maxillofacial area.

Method: A 65-year-old male patient came to the Ibnu Sina Makassar Hospital, complaining of swelling of the right submandibular blood extending to the buccal, sublingual, submental, and temporal. Patient was in a limp condition, shortness of breath (dyspnea), coughing, difficulty opening his mouth, difficulty eating and swallowing with pulse 121 times / minute, breathing 32 times / minute, and oxygen saturation of 94% (simple mask of 5 lpm). Patient was diagnosed with the right submandibular abscess extending to the right buccal, right temporal, right and left sublingual, and submental with sepsis due to gangrene of tooth root 46. Surgical incision and drainage of the abscess was performed under general anesthesia.

Results: Incision and drainage of the abscess in the patient was carried out even with the suspicion that the patient was indicated as having been exposed to covid-19 by following the principle of preventing covid-19 infection.

Conclusion: Surgical preparation, appropriate therapeutic management, and proper use of PPE will help provide the best service to patients while protecting medical personnel in the current Covid-19 pandemic era.