When we are 6 years old, the first permanent molar will erupt behind the deciduous molars.   This tooth is also called the 'Six-year Molar'. We have to remember to clean our 'Six-year Molars' when brushing, otherwise we will get decay in the tooth and illness in the periodontal tissues.   Wobbly teeth will fall out naturally. There is no need to extract them.   To avoid gum inflammation, we need to gently brush the wobbly teeth too.