My baby is 12.5 months old now and still there is no sign of teething.what are the reasons

A. hi teething can range between 6 to 15 months age so as such no need to worry although as delay can be caused by calcium deficiency, please visit your pediatrician for once give calcium rich food like Ragi ,milk and milk based products etc more avoid giving RO water as it can lead to deficiency of vitamin D.