This chapter discusses common dental problems. The primary dentition comprises of 20 teeth: Four incisors, two canines and four molars in each jaw. There are no premolars in primary dentition. The permanent dentition comprises of 32 teeth: four incisors, two canines, four premolars and six molars in each jaw. Before eruption of the tooth, a bulge can be seen in relation to the site known as “pre-eruption bulge”. Inflammation of the gingival tissues before complete emergence of the crown may cause a temporary painful condition that subsides within a few days. No treatment is necessary. Very rarely a bluish purple elevated area of gingival tissue, commonly called “eruption hematoma” develops a few weeks before the eruption of primary or a permanent tooth.