Spontaneous Eruption of Premolar Associated with a Dentigerous Cyst

Table 1

Factors related to spontaneous eruption of premolars associated with DC.

Factors analyzed	Hyomoto et al., 2003 [10]	Fujii et al., 2008 [11]	Yahara et al., 2009 [12]
Age	The smaller, the greater the chances of eruption	Under 10 years old	Mean age 9.8 years
Depth of inclusion	4.4 mm	Smaller than 5.1 mm	The smaller, the greater the chances of eruption
Angulation of tooth	20.4° ±	Smaller than	Close to
Space present for eruption	Does not influence	Larger than 1 cm	Does not influence
Rhizogenesis	1/2	Incomplete	Does not influence

According to Hyomoto et al. [10] and Fujii et al. [11], it is considered the angle formed between the line that passes through the long axis of the included tooth and the plane bisecting the long axes of the neighboring teeth. The depth is considered as from the cementoenamel junction.
According to Yahara et al. [12], it is the measurement of the angle formed between the line that crosses the long axis of the tooth involved and the line that passes through the cementoenamel junction of the neighboring teeth.