For most people, a dental check-up per year is adequate. However, for those with high risk or special needs, a dental check-up every six months may be necessary. People with high risk or of special needs include:
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Mentally handicapped individuals may have difficulties in maintaining a basic level of oral hygiene. They are very prone to Periodontal Disease and Dental Caries.
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In the process of radiotherapy, normal oral tissues are affected. The treatment may give rise to a decrease in saliva secretion and inflammation of the oral mucosa, which may lead to Dental Caries and Periodontal Disease.
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The chance of developing Periodontal Disease of smokers is five times higher than that of non-smokers.
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The patients with oral tumour or cleft palate need to have frequent oral examination to maintain their oral health.
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The immunity systems of patients with Diabetes Mellitus, Haemophilia or AIDS are compromised, leading to a lowered body resistance to bacterial infections. If their oral hygiene is poor, the dental plaque accumulated on the tooth surfaces will easily give rise to Periodontal Disease. The disease will then progress rapidly.
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