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Risk Factors for Implant Bone Loss in Patients With Diabetes Mellitus

Risk Factors for Implant Bone Loss in Patients With Diabetes Mellitus: A Feasibility Cohort Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT00933491
Enrollment
32
Registered
2009-07-07
Start date
2008-11-30
Completion date
2010-12-31
Last updated
2015-11-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetes

Keywords

healthy

Brief summary

Dental implants are regarded as a standard of care in restoring missing teeth. Although there is a high prevalence of diabetics who receive dental implants, the relationship between dental implants and diabetes has not clearly been investigated. A total of 32 subjects (14 patients with type II diabetes and 18 non-diabetes subjects) who have dental implants were recruited. The purposes of this research study were: (1) to evaluate diabetes patients to determine risk factors for bone loss at dental implants and teeth; and (2) to evaluate bone-resorptive biomarkers (proteins related to bone loss) present in saliva and blood serum, comparing the two groups.

Detailed description

OBJECTIVE: Regulators of peri-implant bone loss in patients with diabetes appear to involve multiple risk factors that have not been clearly elucidated. This study was conducted to explore putative local etiologic factors on implant bone loss in relation to type 2 diabetes mellitus, including clinical, microbial, salivary biomarker, and psychosocial factors. MATERIALS AND METHODS: Thirty-two subjects (divided into type 2 diabetes mellitus and non-diabetic controls), having at least one functional implant and six teeth, were enrolled in a 1-year longitudinal investigation. Analyses of clinical measurements and standardized intra-oral radiographs, saliva and serum biomarkers (via protein arrays for 20 selected markers), and plaque biofilm (via qPCR for eight periodontal pathogens) were performed at baseline and 1 year. In addition, the subjects were asked to respond to questionnaires to assess behavioral and psychosocial variables.

Interventions

None listed

Sponsors

University of Michigan
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
40 Years to 90 Years
Healthy volunteers
Yes

Inclusion criteria

* be at least 40 years old * have at least one dental implant that has been in function for at least 6 months * have at least 6 natural teeth * have good general oral health * not be pregnant or breastfeeding or planning to become pregnant within the next year * if you are a pre-menopausal woman you or your male partner must be surgically sterile or you must be using reliable birth control (i.e., prescription oral contraceptives, contraceptive injections, intrauterine device, double-barrier method, contraceptive patch) now and throughout the study or abstain from sex throughout the study

Exclusion criteria

* not have an active oral infection, including periodontitis and rampant caries * not have a history of chronic systemic illness or infection, history of oral cancer, life expectancy of less than 5 years * not have had cancer treatment in the last 12 months

Design outcomes

Primary

MeasureTime frameDescription
Radiographic Bone Level12 monthsMean radiographic bone level at 12 months

Countries

United States

Participant flow

Participants by arm

ArmCount
Diabetic
Type II Diabetes
14
Control
Non-diabetics
18
Total32

Baseline characteristics

CharacteristicControlDiabeticTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
18 Participants14 Participants32 Participants
Age, Continuous64 years65 years64.5 years
Region of Enrollment
United States
18 participants14 participants32 participants
Sex: Female, Male
Female
9 Participants7 Participants16 Participants
Sex: Female, Male
Male
9 Participants7 Participants16 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 140 / 18
serious
Total, serious adverse events
0 / 140 / 18

Outcome results

Primary

Radiographic Bone Level

Mean radiographic bone level at 12 months

Time frame: 12 months

ArmMeasureValue (MEAN)Dispersion
DiabeticRadiographic Bone Level2.69 mmStandard Deviation 0.17
ControlRadiographic Bone Level2.54 mmStandard Deviation 0.15
Primary

Radiographic Bone Level

Mean radiographic bone level at baseline

Time frame: Baseline

ArmMeasureValue (MEAN)Dispersion
DiabeticRadiographic Bone Level2.59 mmStandard Deviation 0.15
ControlRadiographic Bone Level2.71 mmStandard Deviation 0.14

Source: ClinicalTrials.gov · Data processed: Mar 24, 2026