According to the WHO untreated cataract (43%) is the most common cause of visual impairment after that comes diabetes mellitus (24%). 2 Some studies suggested that different diseases might be associated with visual impairment including other medical problems, such as cardiac defects or diabetes, which are more effective on dental care than the visual impairment. 4 The oral health promotion relies mainly on oral health instructions, which it helps in prevention of the oral diseases especially in children as it assists in providing a good oral health through their whole life. 5 In Saudi Arabia, the prevalence showed 1.5% of the population are visually impaired still, no sufficient studies regarding the subject were reported. Literature review Methods of literature search and appraisal This research was conducted from October 2017-January 2018. It started with looking into previous articles (Full Articles) dated from (1965-2017) using different search engines and applications including Google Scholar, PubMed and ReadCube for relevant articles and reviewed their references list for additional citation using related keywords. All the researched articles were published in English language from different countries and journals around the world. The process of finding the right keywords was in the Inclusion of words such as (Blindness, Visually Impairment, Caries, Oral Hygiene…etc.) excluding articles having their samples from the age of 15 and above. This would help us keep our scope in the field of blindness/visually impairment within the selected age 6-15 years old in respect to their oral health status knowledge.

| http://medcraveonline.com only 8% of people have a congenital visual impairment with the rest developing a visual impairment through local or systemic disease, accidents or age-related degeneration. 2 Furthermore, a huge proportion of adults with a visual impairment relate to hearing problems which may require further help to the provision of dental care. 3 Some of the causes of visual impairment may be associated with other medical problems, such as cardiac defects or diabetes, which are more likely to take an effect on dental care than the visual impairment. 4 Visual Impairment has an impact on oral health through physical, social, or informational barriers related to impairment, medical condition and associated medical disorders. Visually impaired people are challenged every day in their daily activities. The effects of blindness are many, but one of the most common is the inability of the individual to maintain oral health. 5 Despite the high prevalence of visually impaired people in Saudi Arabia, there is no sufficient information about oral health in this population. It is essential to assess the oral needs and demands of this under-privilege population for one to be able to set policies and plan for oral health program, the purpose of this study is to assess the oral health status of children with a visual impairment. Literature Review Methods of literature search and appraisalThe literature search was conducted from October 2017-January 2018 using the Saudi Digital Library. The systematic search was done by carrying out a topic search using the basic search that included related terms "Visual Impairment, Oral Health, Blindness, Caries, Plaque, Orthodontic, Periodontal, Malocclusion, Medical Complication, Dental Surface, and Health Services". The searches were limited to studies published between 1965-2017, English language, and subjects aged 6 -15 years old.

Autism spectrum disorder (ASD) is a developmental disability caused by differences in the brain. People with ASD often have challenges with socializing interacting with people around them, their behaviors and interests are restricted and repetitive. Children with ASD might face some difficulties in the way they learn or interact, which might interfere with their general health and especially their oral health, since they might need the dexterity and will of obtaining a good oral health. We’ve conducted a study on some of the children with ASD in Saudi Arabia to screen their general oral health using the dmft system by the WHO. The aim of this study is to analyze the oral health status of the ASD children in Saudi Arabia and to sense whether we need a room for improvement in their oral health awareness and knowledge.

Coming to the types of cysts, it also has different forms and origins, (i) Odontogenic Cyst; which is tooth related. (ii) Non-Odontogenic Cyst; which is non-tooth related. To get a precise detection of tumors or cystic lesions is an important step in the process of computer-aided diagnosis systems. Radiologists are important in the diagnosing team; however, usually manual detection becomes tiresome in the presence of small sized lesions and consumes time due to the presence of large amount in data collecting. Therefore, developing an automatic or semi-automatic method can save a lot of time for the radiologists. Three-dimensional imaging can be obtained using the Cone Beam CT (CBCT), which is rapidly advancing, in the area of the