Dental calculus is a hard deposit that is formed by calcification of dental plaque primarily composed of calcium phosphate mineral salts which is deposited on natural teeth and restorations and is covered by a layer of unmineralized plaque. These hard deposits may form coronal to or apical to the gingival margin, hence named accordingly as supragingival and subgingival calculus respectively. The distribution of calculus is very versatile and it differs from individual to individual, from tooth to tooth, and from surface to surface. So, a thorough knowledge on prevalence of calculus is important for the clinician in outlining the treatment plan. It is a well-known fact that calculus is itself not an inducing agent for pathological changes that occur in gingival tissues; instead it is covered by a layer of unmineralized plaque which is proven to be the key etiological agent involved in these pathogenic mechanisms. But, attributing to the porosity of calculus and its ability to retain bacterial antigens makes it an important contributing factor in initiating and accentuating periodontal disease progression. In this review, we made an attempt to discuss various aspects of calculus composition, its formation, and its etiological significance in periodontal disease progression. How to cite this article Aghanashini S, Puvvalla B, Mundinamane DB, Apoorva SM, Bhat D, Lalwani M. A Comprehensive Review on Dental Calculus. J Health Sci Res 2016;7(2):42-50.

Various root developmental anomalies like palatoradicular groove (PRG) have been associated with worsening of periodontal condition. The aim of the present case report is to describe the regenerative surgical treatment of periodontal and osseous lesion associated with the subgingival extension of PRG. A 23-year-old female patient reported with pain in upper incisor teeth region. On clinical and radiological examination, a deep endosseous defect was found distal to maxillary right lateral incisor that was etiologically associated with the presence of a PRG. Treatment procedures consisted of: Regenerative periodontal therapy using Guided tissue regeneration (GTR) and hydroxyapatite (HA) bone graft and 2) flattening of the radicular portion of the palatal groove. The clinical examination at 1 year revealed shallow residual probing depth (3 mm) and no increase in gingival recession. The radiographic examination showed reduction in the radiolucency suggesting bone fill. A PRG may serve as a pathway for the development of a periodontal osseous defect. The combination of GTR and HA may be clinically and radiographically efficacious in the treatment of such a defect.

Dental diseases if left unchecked can lead to major health problems, on the other side periodontal diseases are recognized as a major public health problem throughout the world and is the most common cause of tooth loss in adults. Plant products are recently introduced herbal formulations that are more beneficial than the conventional therapies. There are number of traditional herbal remedies for the treatment and management of diseases related to teeth, gum and oral hygiene. The aim of this review is to present a brief overview of the various herbal formulations and their application in prevention, treatment and maintenance of oral health.

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