In the era of antibiotic resistance, a naturally occurring substance is needed to completely cure the infection without any toxic side-effects; a responsibility that "O ₃ or Ozone" seems to implement sincerely. Ozone gas has a high-oxidation potential and has the capacity to stimulate blood circulation and the immune response. It is a great supplement to conventional therapeutic dental modalities. Treatment may be achieved by increasing the resistance of the tooth against the microbial activity and reducing the extent of microbial activity. In addition to the recent materials and techniques, the therapeutic actions of ozone may provide beneficial results by reducing the demineralization of the tooth. Its bactericide, virucide and fungicide effects are based on its strong oxidation effect with the formation of free radicals as well as its direct destruction of almost all microorganisms. This potentially beneficial agent has been used in dentistry also. Ozone has a wide application in dentistry which includes treatment of carious lesions, root canal disinfection, wound healing impairments after surgical interventions, plaque control, disinfection of dentures, etc., The purpose of this article is to summarize the mechanism of action and different modalities of ozone therapy in the practice of dentistry.

Objectives: The need for treatment as assessed by the patients themselves is of utmost importance. Hence, the purpose of this study was to investigate the perception of personal dental appearance among students of King Khaled University (KKU), Saudi Arabia. Materials and Methods: A total of 391 students from KKU were recruited for the study. Information on awareness of malocclusion and satisfaction with personal dental appearance was obtained from a five-item closed ended questionnaire. Chi-square test was used to test the association of the study variables. Results: Statistically significant association of self-perceived dental appearance was found with respect to gender as well as the type of education (P < 0.05). Conclusion: Females were found to be more dissatisfied with their dental appearance. Dental education has significant influence on an individual's self-perception of dental appearance.

Background: Oral health practices are essential for prevention of dental and other associated systemic diseases. This study explores Jimma University Health Sciences students, with the respect to frequency and quality of use and the effect of gender differences on the distribution of oral health knowledge and behavior. Materials and Methods: Self-reported questionnaires were distributed to be completed by the participants from health sciences students. These students were selected at random after having read a consent letter. Three hundred students (males 206 and 94 females) were completed the questionnaires. The data were processed and analyzed by means of the Statistical Package for Social Sciences (SPSS version 14.0, Institute Inc., Cary, NC, USA). Results: About 57.6% males and 52.5% females scored highly in knowledge of caries. The corresponding rates regarding the knowledge of gingivitis were 49% and 44% respectively. Tooth brushing and the use of mefakia (chewing stick) ≤2 times a day was confirmed by 56.8% males and 58.2% females and by 74.8% males and 62.8% females, respectively. Conclusion: Awareness of oral health issues is high, but specific misconceptions exist. There is gender equality in knowledge and practice of oral hygiene among health sciences students. Mefakia chewing stick was equally used with toothbrush for oral hygiene practice.

Background: The purpose of this study was to evaluate the color stability of different types of nano-hybrid resin based composite restorative materials upon exposure to aggressive staining solutions (coffee and tea) over time. The color of all specimens before and after storage in the solutions were measured by a spectrophotometer based on CIE Lab system that is recommended by the American Dental Association and the color differences thereby is calculated. Materials and Methods: The color differences of three nano-hybrid composites after immersion for 30 days in tea and coffee as aggressive beverage solutions. Results: Within the limitations of the study, Venus Diamond was found the most color stable in tea, while Ceram X was shown the most color stable in coffee. There were statistically significant differences between Filtek 350 XT in tea and coffee storage (P < 0.005), but there weren't statistically significant in tea and coffee in both Ceram X, and in Venus Diamond (P > 0.005). Conclusion: Staining solutions are significant factors that affect color stability of composite resins.

Aim: The present study was aimed to evaluate the effect of dietary supplement of coenzyme Q10 (CoQ10) in nonsurgical treatment outcome of chronic periodontitis patients after phase 1 periodontal therapy. Materials and Methods: A total of 50 generalized chronic periodontitis patient between the aged ranges between 18 and 55 years were enrolled in the study and divided into two categories (A and B). Clinical and microbiological parameters were recorded prior to phase 1 therapy; and subjects were put on conventional oral hygiene regime. The subjects under group B were incorporated with CoQ10 as nutritional dietary supplement (TDS). Results: The results of this study showed that there was significant decrease in clinical and microbiological parameters from baseline to 4 months in both groups (P < 0.01). The subjects under group B incorporated with dietary supplement of CoQ10 showed a highly significant reduction to all the parameters when compared to subjects under group A. Conclusion: Long-term regular intake of nutritional dietary supplement of CoQ10 is more beneficial in nonsurgical treatment outcome of periodontal disease.

Double lip is a rare anomaly that may be congenital or acquired and affects upper lip more commonly than the lower lip. This deformity consists of an accessory fold of redundant mucous membrane inside the vermilion border. It affects esthetics and may also interfere with speech and mastication. Simple surgical excision produces good functional and cosmetic results. We describe a case of congenital maxillary double lip along with a brief review of the literature and discuss the differential diagnosis. This anomaly is of more relevance in dentistry as a general dental practitioner is usually the first professional to recognize and establish the diagnosis.

Accidents are unpleasant incidences that happen when we are careless or when we do not follow the safety rules. In the dental office, foreign body ingestion or aspiration is a rare but serious mishappening. Ingestion of blunt foreign objects is less life-threatening and the object is generally egested through the gastrointestinal tract uneventfully, but sharp objects like endodontic files may sometimes cause intestinal perforation. Aspiration, on the other hand, is a more serious, but fortunately, less prevalent hazard and often leads to hospitalization of the patient. From a legal aspect also, such incidence is counted as negligence on the part of the operator and the dentist should be well aware of the legal liabilities and should take the appropriate preventive measures to prevent or intercept any untoward circumstance.