Does history of periodontitis affect implant success?

Yes. Ong et al. (2008, Clin Oral Implants Res) and Safii et al. (2010) found approximately 2-fold higher implant failure rates in patients with a history of periodontitis, even when treated and stable. Peri-implantitis rates are also significantly higher. Active periodontitis is a contraindication — it must be fully treated and stable before implant placement.

What is the risk of implants in patients on bisphosphonates?

Intravenous bisphosphonates (used in oncology) carry a significant risk of medication-related osteonecrosis of the jaw (MRONJ), first described by Marx et al. (JOMS 2003). Implants are generally contraindicated. Oral bisphosphonates (for osteoporosis) carry lower but real risk — particularly after 3+ years of use. The American Association of Oral and Maxillofacial Surgeons (AAOMS 2022) guidelines should be followed.

Are short implants (<8mm) less reliable?

Short implants have historically shown higher failure rates, particularly in poor-quality bone. Renouard & Rangert (Risk Factors in Implant Dentistry, Quintessence 1999) and Kotsovilis et al. (2009) highlighted increased biomechanical stress. However, modern surface-treated short implants (4–6 mm) perform increasingly well and may be preferred over extensive bone augmentation in selected cases.

What does the risk score mean clinically?

Scores of 0–4 (Low) indicate standard protocol is appropriate. Scores of 5–9 (Moderate) indicate modifiable factors should be addressed and enhanced maintenance planned. Scores of 10–14 (High) warrant multidisciplinary input and enhanced informed consent. Scores ≥15 (Very High) require careful case selection, possible alternatives to implants, and specialist referral. Red-flag alerts (IV bisphosphonates, active periodontitis, poorly controlled diabetes) appear separately as potential contraindications.

Dental Implant Failure Risk Scorer

Evidence-based multi-factor risk assessment across 12 validated parameters. Score each factor and receive a risk classification (Low / Moderate / High / Very High) with red-flag contraindication alerts, recommendations, and an exportable clinical note. All scoring weights are referenced to peer-reviewed literature.

⚠️ Clinical decision support only — does not replace clinical judgement or specialist assessment.

Frequently Asked Questions

How much does smoking increase implant failure risk?

A 2015 meta-analysis by Chrcanovic et al. (Journal of Dentistry) found that current smokers have a statistically significant 2.2-fold higher implant failure rate compared to non-smokers (OR 2.23, 95% CI 1.96–2.53, p<0.001). Heavy smokers (≥10/day) carry even greater risk, particularly in the maxilla.

Can diabetic patients receive dental implants?

Well-controlled diabetics (HbA1c ≤7%) can receive implants with only marginally elevated risk. Poorly controlled diabetes (HbA1c >8%) significantly increases failure, peri-implantitis, and delayed osseointegration. Chrcanovic et al. (2014, J Oral Rehabil) found a failure rate of 10.1% in diabetics vs 3.7% in healthy controls. Metabolic optimisation before surgery is mandatory.

Does periodontitis history affect implant survival?

Yes. Ong et al. (2008) and Safii et al. (2010) found approximately 2-fold higher failure rates in patients with a history of periodontitis, even when treated and stable. Active periodontitis is a contraindication — it must be fully treated before implant placement.

What is the bisphosphonate / MRONJ risk?

IV bisphosphonates (zoledronate, pamidronate) carry a significant risk of medication-related osteonecrosis of the jaw (MRONJ), first described by Marx et al. (2003). Implants are generally contraindicated in these patients. Oral bisphosphonates (alendronate) carry lower but real risk after 3+ years — follow AAOMS 2022 guidelines.

What does each risk class mean clinically?

Low (0–4): Routine protocol. Moderate (5–9): Optimise modifiable factors, plan enhanced recall. High (10–14): Multidisciplinary input, detailed informed consent for elevated failure risk. Very High (≥15): Consider alternatives; specialist referral; may need to defer or decline.

Dental Implant Failure Risk Scorer

A. Systemic Risk Factors

B. Periodontal History

C. Site-Level Factors

D. Procedural Factors

Score Breakdown

Clinical Recommendations

Clinical Note

Frequently Asked Questions

Welcome to SureDataPro Tools

Dental Implant Failure Risk Scorer

A. Systemic Risk Factors

B. Periodontal History

C. Site-Level Factors

D. Procedural Factors

Score Breakdown

Clinical Recommendations

Clinical Note

Frequently Asked Questions