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. 2022 Feb 28;12(3):606.
doi: 10.3390/diagnostics12030606.

Eruption Timing and Sequence of Primary Teeth in a Sample of Romanian Children

Emilia Ogodescu  1 , Malina Popa  1 , Claudia Isac  2 , Raluca Pinosanu  2 , Diana Olaru  2 , Anca Cismas  2 , Anca Tudor  3 , Mariana Miron  4
Affiliations

Eruption Timing and Sequence of Primary Teeth in a Sample of Romanian Children

Emilia Ogodescu et al. Diagnostics (Basel). .

Abstract

Teething is considered a significant event in the growth and development of the child by parents and especially by paediatric dentists and forensic scientists. They constantly need an “up-to-date mirror” of its variability for different geographic regions. The aims of the current study were to determine the timing and sequence of primary tooth emergence, and to establish a correlation between tooth eruption and general growth and external parameters in a sample of Romanian children. This study included 70 healthy children (53% girls and 47% boys), and the analysed data resulted from the questionnaires completed by parents during the whole process. General and specific data on primary teeth eruption were obtained. The differences between sexes were insignificant, except for the maxillary and mandibular canines (p = 0.047 and p = 0.018) and lower temporary second molars (p < 0.001), which were significantly increased in boys. The differences found between the two hemiarches were insignificant (p = 0.197). The mean age of eruption of the first tooth erupted was 7.07 ± 1.990 months. The unpaired t-test was used for comparison of the timings of eruption of the first primary teeth, according to the number of previous births and type of diet, and it was insignificant (p = 0.665 and p = 0.983 respectively).

Keywords: eruption sequence; eruption timing; healthy children; number of teeth; primary teeth; questionnaires; reference values.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure A1
Figure A1
First page of the questionnaire (presentation of the study for the parents).
Figure A2
Figure A2
Second page of the questionnaire (used to collect the data for our study).
Figure 1
Figure 1
Distribution of our sample according to the year of their birth.
Figure 2
Figure 2
Distribution of children by place in the sequence of sibling births.
Figure 3
Figure 3
Distribution of children by the Apgar score.
Figure 4
Figure 4
Reference values of timing (months) and sequence of primary teeth eruption (tooth numbers of the upper and lower jaw quadrant, in relationship to the red line) in our sample.
See this image and copyright information in PMC

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