Mobility of tooth
The mobility of the tooth to be extracted should be assessed preoperatively greater then normal mobility is frequently seen with severe periodontal disease if the teeth are excessively mobile an uncomplicated tooth removal should be expected, and there should be more Involved and complicated soft tissue management after the extraction (Fig, 7·1, A),
A, Tooth with severe periodontal disease with. bone loss and wide periodontal ligament space, This kind of tooth is easy to remove. 8, Retained mandibular second primary molar with an absent succedaneous tooth. It Is submerged, .and likelihood for ankylosed roots Is high
Teeth with’ large carious Iesions are likely to fracture during extraction, making
extraction more difficult
Teeth that have less than normal mobility should b carefully used for the presence of hypersemontosis or ankylosis of the roots, Ankylosis often seen with primary molars that are retained and have become sub- merged {Fig, 7·1,B)i In addition, It Is en occasionally in nonvital teeth that have had endodontic therapy many years before the extraction, If the clinician believes that the tooth Is ankylosised, It is wise to plan for a surgical removal of the tooth as opposed to forceps extraction.
