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"9-year-molars" aberrantly developing and erupting: report of cases
1Department of Pedodontics, School of Dentistry, University of Bergen, Norway. Per.Rasmussen@odont.uib.no
The Journal of Clinical Pediatric Dentistry
|June 27, 1998
Summary
Delayed eruption of first permanent molars, often in the upper jaw, is described. These teeth typically erupt on their own, avoiding unnecessary surgical or orthodontic intervention.
Area of Science:
- Dentistry
- Oral Biology
- Developmental Biology
Background:
- The study investigates an unusual dental development pattern affecting the first permanent molars.
- This phenomenon is characterized by delayed development and eruption, primarily observed in the maxillary arch.
Observation:
- The aberrant teeth develop and erupt chronologically between the typical timing of first and second molar emergence.
- Their anatomical features most closely resemble those of second molars.
- During development, these teeth are often positioned away from the adjacent second primary molars.
Findings:
- The aberrant teeth demonstrate a developmental timeline distinct from typical first molars.
- Despite initial displacement, these teeth generally migrate into occlusion with the mesial tooth.
- A common clinical misdiagnosis involves mistaking these for first molars with eruption disturbances.
Implications:
- Misidentification can lead to unnecessary surgical or orthodontic treatments.
- The findings suggest that conservative management is appropriate, as spontaneous eruption is common.
- Understanding this developmental anomaly is crucial for accurate diagnosis and treatment planning in pediatric dentistry.