Background: Orthodontic treatment involves the use of appliances such as braces or aligners to straighten teeth and improve bite. Maintaining good oral hygiene during treatment is crucial to prevent the development of dental caries and periodontal disease. Methods: A literature search was conducted using PubMed, Cochrane Library, and Google Scholar for studies published between 2018 and 2022. The search terms used included "orthodontic treatment," "oral hygiene," "dental caries," and "periodontal disease." Inclusion criteria for studies were: (1) written in English, (2) published in peer-reviewed journals, (3) focused on orthodontic treatment and oral hygiene, and (4) included original research. Exclusion criteria were: (1) case reports, (2) reviews or meta-analyses, (3) not focused on orthodontic treatment or oral hygiene. Results: A total of 28 studies were included in the systematic review. The majority of the studies were observational in nature and conducted on adolescent patients. The studies consistently demonstrated that poor oral hygiene during orthodontic treatment is associated with an increased risk of dental caries and periodontal disease. Specifically, a poor oral hygiene status was found to be associated with a higher incidence of white spot lesions, gingivitis, and periodontitis during treatment with fixed appliances. Conclusion: The results of this systematic review demonstrate the importance of oral hygiene in orthodontic treatment. Patients undergoing orthodontic treatment should be educated about the importance of maintaining good oral hygiene to prevent the development of dental caries and periodontal disease. Dentists and orthodontists should closely monitor the oral hygiene status of their patients during treatment and provide appropriate interventions to improve oral hygiene and prevent the development of oral health complications.

Background: Background: To evaluate and compare the hardness and tensile bond strength of a silicone soft lining material, after short term immersion in two different denture cleansing solutions and water over varying time periods. Materials & Methods: The study comprised of 3 groups followed by 3 subgroups under each groups of 10 specimens for evaluation of tensile bond strength with heat cure denture base acrylic resin, and 3 groups followed by 3 subgroups under each groups of 10 specimens each for the hardness test of soft liners. Group A: Heat polymerized silicone based resilient liner immersed in denture cleansing solution secure with 700mg of sodium perborate monohydrate, Group B: Heat polymerized silicone based resilient liner immersed in denture cleansing solution clinsodent with 480mg of sodium perborate monohydrate and Group C: Heat polymerized silicone based resilient liner immersed in water. Results: At day 1 and 1 week, Group B showed highest tensile bond strength (1.500.015) and (1.12  0.012) respectively whereas at 1 month, Group C showed highest tensile bond strength (0.96  0.016). Conclusion: A significant difference exists in the tensile bond strength and the hardness values of the soft liner specimen when immersed in water and two different denture cleansing solutions between the periods of immersion.

Objectives: 1) Study the predominant palatal rugae characteristics in Angles classes of malocclusions. 2) Statistically relate the major palatal rugae characteristics with Angles classes of malocclusions and thereby study the probability of employing it in forecasting malocclusions. Materials and Methods: The data for classifying malocclusion was obtained from the patients’ clinical records. Study casts of the palate of 100 healthy orthodontic patients were included as Class 1, Class 2 and Class 3 respectively. Palatal rugae characteristics for all groups were recorded and Class 2 was compared with Classes 2, and 3 according to angles classification and analyzed. Distribution of 100 study casts for the study- 34 Class 1; 34 Class 2 and 32 Class 3. Inclusion Criteria: 1) The casts were categorized into class 1, 2 and 3 based on the ANB angle of 0-4 degrees for class 1, more than 4 degrees for class 2 and less than 0 degrees for class 3. 2) No previous orthodontics treatment. 3) No anomalies. Exclusion Criteria: 1) Study casts of inferior quality. 2) Records of any patient having history of previous anomalies affecting the maxilla rugae. Statistics: Predominant palatal rugae data of groups was entered in SPSS (version 10.0) software and statistically analyzed using ANOVA test to assess the differences between Class 1, 2 and 3 malocclusions study casts for the palatal rugae. Palatal rugae size (length) and number analysis shall be using Krukas-wallis test. The Pattern (Shape) and orientation (Position) of the palatal rugae shall be assessed using chi-square test. Results: Wavy and complex rugae were prevalent in Class 1 and 3 malocclusions and showed statistically significant difference between Class 1, 2 and 3 malocclusions (p=0.00, 0.014 and 0.016 respectively). The wavy pattern was higher in Class 1 and horizontal and complex higher in Class 3. Conclusions: Predominant palatal rugae can be considered on vaticination of malocclusions, still, clinical correlation is must. Further studies could be accepted to develop digital styles to identify predominant palatal rugae and prognosticate malocclusion.

Background: Effective root canal treatment involves cleaning and shaping root canals using a range of instrumentation procedures and techniques. The aim of this review was to provide an update on root canal hand instrumentation techniques and how to overcome iatrogenic errors. Purpose: Purpose of this review was to provide an update on root canal hand instrumentation techniques commonly used in endodontics, including how to overcome iatrogenic errors and optimize the quality of endodontic treatment outcomes. Methods: A comprehensive search was carried out using multiple databases, PubMed, Medline, Google scholar, and Scopus, to identify relevant studies addressing the objective of this study and to summarize the current evidence to readers. Results: The hybrid technique is a commonly used approach that combines the benefits of both the crown-down and step-back techniques and was reported to be one of the best techniques to produce an optimal root canal preparation outcome. Hand-instrument manipulation using the balanced forced technique is also favored as it rapidly and safely permits removal of canal contents allowing irritants and medications to reach deep inside canal spaces. Conclusion: The use of hand files is still recommended for initial canal negotiation and preparation and is essential for the correction of procedural errors. This study provided an update on several hand instrumentation techniques commonly used in endodontics. The correct and safe application of these techniques can prevent iatrogenic procedural errors from occurring which optimizes the quality of treatment outcome.

Background: Benign migratory glossitis (BMG) is an inflammatory disorder, usually asymptomatic, of unknown aetiology, which regularly happens at the dorsum of the tongue and may sometimes involve its lateral borders. BMG prevalence among adults ranges from 0.28% to 2.4%. It appears to become more females in the middle age group. Aim: This study aimed to determine the prevalence of BMG and evaluate the possible correlation between the occurrence of BMG with age, gender, burning symptoms and some systemic conditions. Materials and Methods: The present cross-sectional study was conducted at the Dar Alfardous dental facility, Tripoli – Libya. A random sample of 577 patients attended the dental clinics over nine months. The patients were examined for the presence of BMG over one year. Statistical analysis: A chi-square test was done to assess the correlation of BMG with age, gender, burning sensation and some systemic conditions. Result: The prevalence of BMG among Tripoli city, Libya's population was as high as (10%). Fissured tongue (FT) (35.7%) revealed a high association with BMG followed by the hairy tongue (HT) (3.5%). Prevalence of BMG was found to be significantly higher in the < 20 (3-19) years old (13%) (P = 0.004). Conclusion: BMG among this study sample of the population showed a higher prevalence rate. BMG was more frequently observed in children and young adults and most prevalent in females. Based on our results, there was a significant association between BMG and FT.