Results

There were a total of 728 children who met the inclusion criteria.  The gender ratio of 1:1.09 favored male children. Tables 1a and 1b show the mean time of eruption of primary teeth and their standard deviations for each category of tooth.  For both the maxilla and mandible, there were no differences in the mean age of eruption of the teeth in the right and left sides; hence, they were combined.  Thus, the summary statistics of the mean age of tooth eruption has been presented for both right and left sides.

Table 1b.  Mean ages (months) at eruption ± standard deviation (s.d.) of mandibular primary teeth in Saudi children.

The mandibular central incisors were the earliest category of teeth to erupt with a mean age of about 8.5 months for both genders.  A standard deviation of 2.8 months suggests 68% of the children would have their teeth erupted between 5.7 months and 11.3 months.  The maxillary central incisors erupted at about 11 months followed by the maxillary and mandibular laterals respectively.  The first molars erupted on average earlier than the canines.  The mandibular and maxillary second molars erupted at a mean age of about 28 months for both genders.  The length of time from eruption of the first tooth to the last tooth was 19.5 months in the mandible and almost 17 months in the maxilla.

Click Here To Navigate Within Article >> Abstract Introduction Subjects and Methods Results Discussion Conclusion References About the Authors
	Page 4 of 11
Citation Number: Vol. 4, No. 3, Page 068