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The Association between Ponticulus Posticus and Dental Agenesis: A Retrospective Study
Alessandra Putrino1, Rosa Maria Leonardi2, Ersilia Barbato1
1Department of Oral and Maxillofacial Sciences, University "Sapienza" of Rome, Roma, Italy.
The Open Dentistry Journal
|September 11, 2018
Summary
Ponticulus Posticus (PP), a calcification of the Atlantooccipital Ligament, is significantly more common in patients with Dental Agenesis (DA). This suggests a potential link between these conditions and neuro-cristal cell defects.
Area of Science:
- Craniomaxillofacial development
- Dental anomalies
- Congenital disorders
Background:
- Neural tube defects can impact skull, vertebral, and tooth development, potentially causing dental agenesis.
- Dental Agenesis (DA) is a congenital condition characterized by missing teeth.
- Ponticulus Posticus (PP) is a calcification of the Atlantooccipital Ligament.
Purpose of the Study:
- To investigate the association between congenital Dental Agenesis (DA) and Atlantooccipital Ligament (AOL) calcification, known as Ponticulus Posticus (PP).
- To explore potential links between DA and PP in non-syndromic patients.
Main Methods:
- Systematic literature review followed by assessment of AOL calcification in lateral cephalograms.
- Evaluated 350 non-syndromic patients aged 7-21 years.
- Compared findings with a control group of non-syndromic patients without congenital missing teeth.
Main Results:
- Prevalence of PP (complete and partial) was 16.3% in the studied population, with no significant gender difference.
- Complete PP was more frequently observed in both sexes.
- PP occurred in 66.6% of patients with DA, a statistically significant difference compared to those without DA (p=0.00).
Conclusions:
- Ponticulus Posticus (PP) is a relatively common anomaly.
- The significant association between PP and DA suggests a potential common origin related to neuro-cristal cell defects.
- Documentation of PP during radiographic examinations is recommended, especially in patients with associated symptoms, to prompt further investigation.
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