Correlation between Pulp Stones and Gall Bladder Stones: A Radiographic Retrospective Case-Control Study

Area of Science:

• Dental Radiology
• Gastroenterology
• Systemic Calcification

Background:

• Pulp stones are calcifications within the dental pulp of unknown origin.
• Previously thought to result from local irritants, systemic biomineralization is a newer hypothesis.
• Systemic biomineralization affects various organs, including kidneys, gallbladder, joints, and arteries.

Purpose of the Study:

• To determine the prevalence of pulp stones and pulp chamber narrowing in patients with gallbladder stones versus controls.
• To investigate the correlation between pulp stones and gallbladder stones.
• To test the hypothesis of a common systemic calcification process.

Main Methods:

• Retrospective case-control study of 200 individuals (100 with gallbladder stones, 100 controls).
• Controls were close relatives to minimize confounding factors like diet, environment, and genetics.
• Standard bitewing radiographs were used to assess pulp stones and pulp chamber narrowing.

Main Results:

• Pulp stones were present in 37% of patients with gallbladder stones.
• Pulp stones were present in 57% of the control group.
• McNemar's test showed a significant difference (P=0.01) between the groups, indicating a negative correlation.

Conclusions:

• A negative correlation was observed between pulp stones and gallbladder stones.
• The findings suggest that pulp stones and gallbladder stones are not related.
• The hypothesis of a common systemic calcification process for both conditions is not supported by this study.