In our study it was found that patients in groups II and III had more prevalence of oral mucosal disorders. Lingual varices, oral squamous cell carcinoma, fbroma and denture induced infammatory fbrous hyperplasia were more commonly associated with the geriatric patients. The oral lesions (fbroma and lichen planus) were strongly associated with women while leukoplakia was strongly associated with men. Ageing is an important factor that can infuence the occurrence of mucosal lesions and with age the oral mucosa becomes more permeable to noxious substances and more vulnerable to external carcinogens.

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The tooth position and flange contour have great influence on the stability of a denture. We should not be dogmatic and insist that teeth be placed over the crest of the ridge, buccal or lingual to the ridge. Teeth should be placed as dictated by the musculature, and this will vary for different patients. The neutral zone technique is the most effective way of improving the stability of complete denture especially for patients with atrophic ridges or diminished neuromuscular control. The technique involves recording neutral zone using tissue conditioner and fabrication of a denture which is in harmony with the surrounding oral musculature. This article aims to increase the awareness of dental practitioners to use neutral zone concept in case of denture stability difficulties.