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CompletedNCT06081816Updated Oct 13, 2023

Third Molar: Caries, Periodontal Desease and Quality of Life

An observational study in Caries and Periodontal Diseases, sponsored by University of Nove de Julho. Completed. Per ClinicalTrials.gov, last updated 2023-10-13.

Sponsored by University of Nove de Julho · Observational

Study type
Observational
Model
Other
Time perspective
Other
Enrollment
116
Sex
All
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Study summary

Caries and periodontal disease are chronic diseases of the oral cavity. The incidence of caries and periodontal disease can vary depending on the position of the third molar, The aim of this study was to verify possible associations between oral health-related quality of life (QoL), periodontal disease, caries lesions and the position of the lower third molar.

Read the detailed description

Caries and periodontal disease are chronic diseases of the oral cavity. The presence of third molar teeth can lead to periodontal disease in the region, and often can lead to injuries and damage to the oral health, having a significant impact on the quality of life. The incidence of caries and periodontal disease can vary depending on the position of the third molar. Purpose: The aim of this study was to verify possible associations between oral health-related quality of life (QoL), periodontal disease, caries lesions and the position of the lower third molar. Materials and Methods: The investigators performed a clinical, observational cross-sectional study within 116 patients that were screened attending to evaluate the need for extraction of third molars at of the specialization course of Oral and Maxillofacial Surgery of FUNDECTO-FFO-USP. Caries, periodontal disease and quality of life are the outcomes that were evaluated by the main researcher. Caries lesions were assessed by visual tactile examination and periodontal disease through two probing sites around third molar, considering the presence of periodontal pathology when at least one periodontal probing depth was greater than 4 mm, and both were evaluated by radiograph diagnostic methods. The assessment of oral health related quality of life by Oral Health impact Profile questionary (OHIP-14), applied as an interview. The evaluation of the position of the third molars was made by clinical and panoramic radiographs according to the classification of Pell and Gregory and Winter. Data was treated and analyzed according to STATA 13.0, software with descriptive and inferential statistics. The level of significance used was 95%. Results: partially erupted and angulation of third molar increase the incidence of caries and periodontal disease in these teeth. Symptoms and age are factors associated with caries and periodontal disease. Patients with caries have higher scores in domains 3 and 6 and those with periodontal disease have higher scores in domains 3 and 4. Pathologies on third molar region had impact on domain 7.

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Conditions studied

  • Caries
  • Periodontal Diseases

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Keywords

  • molar third;
  • dental caries
  • periodontal disease
  • quality of life
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In context

Periodontal Diseases

830 studies on the registry are indexed under Periodontal Diseases; 188 are open to participants now.

This study's enrollment of 116 is above the median of 100 across 291 observational studies indexed under Periodontal Diseases.

Browse Periodontal Diseases studies →

Lead sponsor

University of Nove de Julho is the lead sponsor of 239 studies on the registry; 51 are open to participants now.

Of its 8 completed or terminated interventional studies of FDA-regulated products, 1 (13%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

All participants with at least one third molar erupted or partially erupted. , regardless of age, gender, cultural level or socioeconomic status could participate in the study.

Inclusion criteria

  • ASA I patients (negative medical history), with at least one third molar erupted or partially erupted.

Exclusion criteria

Exclusion Criteria:

  • systemically compromised
  • allergic
  • pregnants
  • patients who had the four third molars included
  • patients who have already undergone the extraction of one of the third molars
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Study design

Observational model
Other
Time perspective
Other
Enrollment
116 participants (actual)
Target follow-up
1 Year
Patient registry
Yes

Interventions

  • Othercarie

    Caries lesions were assessed by visual tactile examination and periodontal disease through two probing sites around third molar, considering the presence of periodontal pathology when at least one periodontal probing depth was greater than 4 mm, and both were evaluated by radiograph diagnostic methods. The assessment of oral health related quality of life by Oral Health impact Profile questionary (OHIP-14), applied as an interview. The evaluation of the position of the third molars was made by clinical and panoramic radiographs according to the classification of Pell and Gregory and Winter

    Also known as: periodontal disease, health related quality of life, third molar position

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What researchers measure

Primary outcomes

  1. carie

    Caries were assessed by visual tactile examination, only on occlusal surface in erupted or partially erupted third molars (visual tactile examination) and evaluation of the presence of the image on the panoramic radiograph.

    Time frame: one year

Secondary outcomes

  1. Periodontal disease

    Periodontal disease was assessed by gingival sulcus probing in the third molars at two points: mesiobuccal and distobuccal regions. We considered the presence of Dp when the pocket was bigger than or equal to 4 mm.

    Time frame: one year

  2. Position of the lower third molars

    Position of the lower third molars were assessed by panoramic radiography, according to the classification of Pell and Gregory and Winter, performed by only one evaluator, following the criteria of imaginary lines as proposed by Almendros-Marques, et al.

    Time frame: one year

  3. Oral health related quality of life: Brazilian version of OHIP-14 questionnaire

    Oral health related quality of life OHRQoL were assessed by Brazilian version of OHIP-14 questionnaire. This instrument consists of 14 items arranged in 7 factors: functional limitation, physical pain, psychological discomfort, physical disability, psychological disability, social disability, and handicap. The answers were given corresponding to a total of 5 points on a Likert-type scale. The scale included the following responses: never (coded 0), hardly ever (coded 1), occasionally (coded 2), fairly often (coded 3), and very often (coded 4). The OHIP-14 scale ranged from 0 to 56, with higher scores indicating poorer QoL

    Time frame: one year

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Study locations

No study locations are listed for this record.

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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 13, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06081816
Lead sponsor
University of Nove de Julho
Responsible party
Anna Carolina Ratto Tempestini Horliana (Phd, clinical professor, University of Nove de Julho) — Principal investigator
First posted
Oct 13, 2023
Start date
May 1, 2013
Primary completion
Oct 1, 2013
Completion
May 1, 2014
Last update
Oct 13, 2023

Study contacts

Anna Carolina R Horliana, phd
principal investigator · Nove de Julho University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2023. You cannot join it, but the record below documents what was studied.

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