• Dr.Ravindra Raydas Pandhare.
• Dr.Varsha Rohidas Sarsande.

Knowledge of primary, mixed and permanent dentition is not only important for a dentist but also has an importance for forensic and anthropological studies. The path of eruption, shedding time and time of root completion should be known. In case of surgical removal of primary teeth, it should be kept in mind that wrong approach can disturb the permanent tooth bud which develops from the lingual/distal extension of the dental lamina. In case of trauma or fracture, the dentist must be able to analyse whether the tooth will go for apexification or apex genesis (pulpotomy) or pulpectomy. The physiological mobility of primary teeth should not be considered as pathological. The difference between primary and permanent dentition is expected from the dentist. Sometimes the permanent tooth which is newly erupted has the mobility due to lack of root completion, all these factors should be kept in mind. Maintaining the space due to premature shedding has a special reason, not giving the importance at this stage and considering it as physiological process can cause malocclusion, causing changes in occlusion and facial profile, which will become more problematic in future. The morphology and histology of both primary and permanent teeth provides the knowledge for restoration. The shape, pulp horn and enamel rods are different. Taking all of that into consideration, the shape, depth and gingival seat of cavity preparation differs. This chapter deals with primary, mixed and permanent phases of dentition. First let us have a brief discussion about prenatal, postnatal and old age skull, which gives us an idea about the phases of development of face and skull.

General differences , Eruption sequences ,Crown , Pulp  Root ,Enamel ,Dentin Periodontium , Histological differences.

"‘’ANATOMICAL AND MORPHOLOGICAL DIFFERENCE BETWEEN PRIMARY AND PERMANENT TEETH ‘’", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 5, page no.j734-j746, May-2022, Available :http://www.jetir.org/papers/JETIR2205A98.pdf

"‘’ANATOMICAL AND MORPHOLOGICAL DIFFERENCE BETWEEN PRIMARY AND PERMANENT TEETH ‘’", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 5, page no. ppj734-j746, May-2022, Available at : http://www.jetir.org/papers/JETIR2205A98.pdf