11. Deciduous teeth are unlikely to have talon cusps.12. They can also experience retention of deciduous teeth ( baby teeth ) and sinus problems from overcrowding. 13. Other common problems include abscessed, loose, infected, or cracked teeth, retained deciduous teeth , and plaque build up. 14. The deciduous teeth appear at about three weeks, with the permanent teeth following at seven to nine weeks. 15. The deciduous teeth form in the groove, and then are reabsorbed, while development of rudimentary baleen plates begin. 16. The deciduous maxillary second molar is also the most likely of the deciduous teeth to have an oblique ridge. 17. Where deciduous teeth are present, it is also possible to determine the age at which a child was weaned. 18. An integral part of the success of this treatment is the timely removal of certain of the deciduous teeth . 19. An odontoclast ( / odon�to�clast /; o-don�to-klast ) is an osteoclast associated with absorption of the roots of deciduous teeth . 20. During " teething " in young children, pericoronitis can occur immediately preceding eruption of the deciduous teeth ( baby or milk teeth ).