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This retrospective cross-sectional observational study aims to evaluate the relationship between taurodontism and periodontal status. Clinical periodontal parameters and panoramic radiographs of systemically healthy adults will be retrospectively reviewed. Participants will be classified according to the presence or absence of taurodontism, and periodontal status will be assessed using clinical and radiographic findings. The study aims to determine whether taurodontism is associated with periodontal disease and periodontal health.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Taurodontism Group | Participants with at least one permanent molar diagnosed with taurodontism on panoramic radiographs according to the Shifman and Chanannel criteria. | ||
| Control Group | Participants without radiographic evidence of taurodontism, matched to the taurodontism group and evaluated using the same clinical and radiographic periodontal parameters. |
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| Measure | Description | Time Frame |
|---|---|---|
| Periodontal status/ Probing Depth (PD) | Probing depth (PD) will be measured in millimeters at six sites per tooth using a periodontal probe and compared between participants with and without taurodontism. | Baseline |
| Periodontal Status/ Clinical Attachment Level (CAL) | Clinical attachment level (CAL) will be measured in millimeters at six sites per tooth and compared between participants with and without taurodontism. | Baseline |
| Periodontal Status/ Bleeding on Probing (BOP) | Bleeding on probing will be recorded as the presence or absence of bleeding after periodontal probing and compared between participants with and without taurodontism. | Baseline |
| Periodontal status/ Plaque Index (PI) | Plaque Index (PI) will be assessed to evaluate oral hygiene status and compared between participants with and without taurodontism. | Baseline |
| Periodontal Status/ Gingival Index (GI) | Gingival Index (GI) will be used to evaluate gingival inflammation and compared between participants with and without taurodontism. | Baseline |
| Measure | Description | Time Frame |
|---|---|---|
| Oral Health-Related Quality of Life (OHIP-14) | Oral health-related quality of life will be assessed using the Oral Health Impact Profile-14 (OHIP-14) questionnaire. | Baseline |
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Inclusion Criteria:
Adults aged 18 to 65 years. Systemically healthy individuals. Availability of a diagnostic-quality panoramic radiograph. Presence of at least 20 natural teeth. No missing premolar or molar teeth. Availability of complete periodontal clinical records, including probing depth (PD), clinical attachment level (CAL), bleeding on probing (BOP), plaque index (PI), and gingival index (GI).
Exclusion Criteria:
Poor-quality or nondiagnostic panoramic radiographs. Teeth with extensive caries or restorations that interfere with taurodontism assessment.
Fractured teeth. Impacted teeth. Teeth with fused roots or an indistinguishable furcation area. Individuals with systemic diseases or conditions known to affect periodontal tissues.
Incomplete clinical or radiographic records.
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The study population consists of systemically healthy adults aged 18-65 years who attended the Faculty of Dentistry at Recep Tayyip Erdoğan University between January 2019 and May 2026. Participants have diagnostic-quality panoramic radiographs, complete periodontal clinical records, and at least 20 natural teeth with no missing premolars or molars. Eligible participants are classified into taurodontism and control groups based on radiographic findings.
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Recep Tayyip Erdoğan University | Merkez | Rize Province | 53020 | Turkey (Türkiye) |
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| ID | Term |
|---|---|
| C536946 | Taurodontism |
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