Clinical trial NCT03497065: Dental Implant Care and Oral Hygiene Practices
Official title: Awareness of Dental Implant Care and Its Correlation With Oral Hygiene Practices and the Presence of Peri-Implant Diseases
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Peri-implant Mucositis
Peri-Implantitis
Dental Plaque
Keywords: Dental devices
Home care
Awareness
Peri-implant mucositis
Peri-implantitis
Lead sponsor: National University Health System, Singapore
Sponsor class: OTHER
First posted: 2018-04-13
Enrollment: 79
Sex: ALL
Minimum age (years): 21
Maximum age (years): 80
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Observational model: COHORT
Time perspective: CROSS_SECTIONAL
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Study population is made up 50.6% male and 49.4% female, mainly Chinese (87.3%), Indian (5%), Malay (3.8%), Caucasian (1.3%), Eurasian (1.3%), and Japanese (1.3%), with a mean age of 58.6 years old.

Brief summary: Objective: This study investigated how patients' knowledge, attitude, and perceptions influence their oral hygiene practices as well as peri-implant health. Materials and Methods: Participants with single implant crowns placed in 2007-2011 completed a questionnaire that examined their knowledge, attitude, and perceptions on oral hygiene practices and peri-implant health before receiving a periodontal examination, prophylaxis, and oral hygiene education. Clinical parameters recorded were peri-implant probing depths and plaque index, width of keratinized mucosa, implant crown characteristics, reason for tooth loss, and diagnosis of peri-implant health.

Detailed description: First, a trained clinical research dental assistant interviewed the participants and showed them pictures of oral hygiene aids so that the participants could answer the survey questions accurately. Subsequently, a periodontal examination, dental prophylaxis, and oral hygiene education were performed. Participants with active diseases e.g. caries, periodontitis, or peri-implantitis were referred for further management. The following clinical parameters were recorded during the examination:

1. Probing depths at 6 sites around the implant (mesiobuccal, midbuccal, distobuccal, distolingual, midlingual and mesiolingual)
2. Plaque index (Silness \& Loe 1964) at 4 sites around the implant (mesial, buccal, distal and lingual)
3. Amount of keratinized mucosa at the implant site
4. Characteristics of the implant crown:

   * Type of implant crown (screw- or cement-retained) and
   * Position of crown margins (supra-, equi- or sub-gingival)
5. Reason(s) for tooth loss
6. Diagnosis of peri-implant health

   * Normal
   * Mucositis, defined as 3 or more bleeding points per implant
   * Peri-implantitis, defined as implant thread exposure that was either clinically visible or detectable with a periodontal probe.

Eligibility criteria: Inclusion Criteria:

* English speaking patient
* Aged 21 years old or above
* Received at least 1 implant-supported single crown from NUH in the year 2007-2011 (in functional loading for at least 5 years)

Exclusion Criteria:

* Implant is used to restore overdentures or multi-unit restorations such as splinted crowns, fixed partial dentures, and cantilevers.
* Pregnant/lactating women
* Parkinson's disease or any other debilitating diseases
* Physical or mental disabilities that may impair oral hygiene practices
* Poorly controlled diabetes
* Heavy smoker (10 or more cigarettes per day)
* Radiation therapy in head and neck region
* HIV, TB, hepatitis or other infectious diseases
* Drug and alcohol abuse

Primary outcomes:
measure: qualitative assessment of patient's knowledge on care and maintenance of dental implants using a questionnaire based on a 5 point Likert scale
timeFrame: 1 day
Secondary outcomes:
Other outcomes:
Locations:
city: Singapore
country: Singapore
facility: National University Hospital
Study officials:
References: