Aim: To compare and measure molar anchorage loss during en-masse retraction using mini-implant and conventional mechanics. Objectives: 1) To evaluate the molar anchorage loss during en-masse retraction of anterior teeth by using conventional mechanics. 2) To evaluate the molar anchorage loss during en-masse retraction of anterior teeth by using the orthodontic mini-implant as absolute anchorage. 3) To measure and compare the molar anchorage loss during en-masse retraction using mini-implant and conventional mechanics. Methods: The study was carried out on 10 patients requiring extraction of four first premolars and maximum retraction. On the right side (experimental side) mini-implants were placed between the second premolar and first molar and an e-chain was engaged from the head of the implant to the crimpable hook. On the left side (control side) an e-chain is given from crimpable hook to molar hook for en masse retraction. The retraction space closure was calculated using vernier caliper on the study model after 28weeks of retraction. Lateral cephalogram was taken before and after orthodontic retraction for calculating molar anchor loss. Results: The retraction space closure after 28 weeks showed a mean value of 3.59+0.68mm on the mini-implant side and 3.98+0.62mm on the conventional mechanics side, which was statistically significant. The anchor loss of 0.17+0.3 mm was observed on the mini-implant side and 1.32+0.62 mm was observed in the conventional mechanics after retraction, which was found to be statistically significant. Conclusion: In this study, the molar anchor loss of 0.17+ 0.3mm was seen on the mini-implant side and 1.32+0.6mm on the conventional mechanics side which was significantly more by 1.15mm than the mini-implant side. The closure of extraction space on the mini-implant side was done by retraction of anterior teeth and minimal anchorage loss, while in the conventional mechanics side there was anchor loss of anterior as well as posterior teeth.

A part of overall health includes oral health. Oral diseases are among the most common diseases in the world and have significant adverse consequences on both health and economy. Dental caries, periodontal disease, tooth loss, and oral malignancies are the oral disorders that have the highest impact on world health. Families and healthcare systems have a significant financial burden from the expense of treating oral diseases. The increased prevalence of oral diseases in many low- and middle-income nations is particularly concerning as oral diseases are a global public health issue. In order to help healthcare decision-makers, this article will outline the assessment of the economic impacts of dental diseases. In order to reduce oral diseases, behavioral changes connected to oral health are necessary and can be brought about by health economics and public policy working together. By focusing on specific instances of evidence gaps in oral health and care, health economics can be a useful tool to guide the design of policies linked to oral health.

Class III skeletal malocclusions are considered to be ones of the most challenging deformities for orthodontists, they may present several forms, among which maxillary deficiency is the most frequent. This type of malocclusion is usually treated with combination of orthodontics and orthognathic surgery in order to obtain an adequate occlusion and facial esthetics. This report presents the treatment of a young female patient aged 16 years and 4 months with Class III skeletal malocclusion, and a severe anterior crowding with palatal displacement of the maxillary lateral incisors and ectopic canines, as well as an Angle Class I molar relationship occlusion on both sides associated with significant dento-alveolar compensation : The upper incisors were proclined while the lower incisors were vertical, and a maxillary midline shift .Clinical examination has also revealed a retrusive maxilla, underdeveloped cheekbones, and a flat facial profile. The treatment was performed in three phases: first, presurgical orthodontic preparation including extraction of the maxillary first premolars and mandibular second premolars in order to perform the orthodontic decompensation, secondly, orthognathic surgery which consists of maxillary advancement to improve soft-tissue projection of the midface, and finally, orthodontic finishing for the conclusion of the case. At the end of the treatment, the main objectives were successfully achieved, providing the patient with adequate masticatory function, pleasant facial esthetics and especially better self-esteem.

The new SARS-CoV-2 virus has become a worldwide emergency. It is recognized as a multiorgan disease and post-acute sequalae are seen in many systems. Many oral symptoms have been reported in relation to COVID-19. Cause- effect relationship between coronavirus and the appearance of such oral lesions still cannot be established. Immunosuppression state of positive cases could explain appearance of oral lesions. Oral hygiene is an aspect that should not be left aside, and it is of great importance to encourage the patient to reinforce hygiene techniques.

Oral cancer considered one of the most 10 cancer among world population [1]. In the period between 1995- 2015 Saudi cancers registries detect 172,424 cancer cases, 3184 were oral cancer cases. 1.5 Per 100000 for female population and 1.4 per 100000 among male population, the majority of cases are from jazan region [2, 3]. The aim of this review is to explain the basic and essential aspects of oral cancer focusing on squamous cell carcinoma , starting from its definition to epidemiology in Saudi Arabia as well world wild as well addressing carcinogenesis , potential malignant diseases , and premalignant lesions. As oral cancer is preventable disease, prevention will be addressed as well.

Osteomyelitis is inflammation of the bone which begins as an infection of the medullary cavity with rapid involvement of the haversian systems and extension to the periosteum. Various etiological factors are involved in origin of the disease, among them fungal origin is rare. Specific feature in fungal osteomyelitis is involvement of maxillary sinus. Maxillary osteomyelitis can be classified based on the following causes: traumatic, rhinogenic, and odontogenic. I hereby report a case of fungal osteomyelitis involving maxilla in a 50-yearold man with uncontrolled diabetes mellitus. This specific case was necrosed bone with analysed using Energy dispersive Xray and Scanning electron microscope analysis. This case report highlights the need of oral physician to rule out fungal origin in osteomyelitis.

Vertical bone atrophy in the mandible is a challenge when inserting dental implants. In situations where less than 3 mm of residual bone is present but both vestibular tables remain intact, a mandibular split technique can be used. It is a highly predictable and easy to perform technique although borderline situations such as those shown in the present clinical case series with less than 3 mm bone width may be less unpredictable in terms of outcome and long-term implant survival. Therefore, we show a series of extreme cases treated with a technique of splitting, biological reaming and matching of the implant to the recipient bed, which achieves lasting results ten years later.