Management of Fosamax Before Dental Work
You do not routinely need to hold Fosamax (alendronate) before most dental procedures, but you should complete a comprehensive dental evaluation and necessary invasive dental work before starting bisphosphonate therapy whenever possible. 1, 2
Pre-Treatment Dental Assessment (Ideal Scenario)
- Complete all necessary invasive dental procedures before initiating Fosamax, as this eliminates the osteonecrosis of the jaw (ONJ) risk entirely 2, 3
- Perform a comprehensive dental evaluation of both hard and soft tissues, including radiographic examination, before starting bisphosphonate therapy 1, 3
- Treat all active oral infections and eliminate high-risk sites before bisphosphonate initiation 2
- Correct vitamin D deficiency prior to bisphosphonate therapy to avoid hypocalcemia 1, 2
Risk Stratification for ONJ
The risk of ONJ with oral Fosamax is extremely low compared to intravenous bisphosphonates used in cancer treatment:
- Oral bisphosphonates for osteoporosis: <1 case per 100,000 person-years 1, 2
- Intravenous bisphosphonates for cancer: 6.7-11% incidence 2
- The most consistent risk factor is recent dental surgery or extraction 1, 2
Management When Dental Work is Needed During Treatment
The Drug Holiday Controversy
The evidence regarding stopping Fosamax before dental procedures remains controversial and lacks strong support:
- Some experts hypothesize that stopping bisphosphonates 2 months prior to oral surgery may allow better bone healing, with resumption delayed until adequate healing occurs 1, 2, 3
- However, the alternative view is that a short break in bisphosphonate administration will have no effect, as bone effects of bisphosphonates are maintained for years after treatment stops 1
- The decision to discontinue therapy must balance the risk of ONJ against the risk of fractures that might occur during the drug holiday 3
Practical Approach for Routine Extractions
For patients already on oral Fosamax requiring tooth extraction, the procedure can be performed safely without stopping the medication:
- A prospective study of 1,480 extractions in 700 patients on oral bisphosphonates showed 100% success with zero cases of ONJ using atraumatic surgical technique 4
- Use prophylactic antibiotics perioperatively 2, 3
- Employ atraumatic surgical technique with minimal trauma to soft and hard tissues 4
- Ensure complete mucosal healing before resuming normal activities 3
Ongoing Dental Care During Treatment
- Maintain excellent oral hygiene and receive regular dental check-ups every 6 months 2, 3
- Inform your dental practitioner of your bisphosphonate treatment 1, 2
- Avoid elective invasive dental procedures (implants, complex extractions) when possible during active therapy 3
- Schedule post-procedure follow-up every 6-8 weeks until complete mucosal healing has occurred 3
Critical Caveats
- The fracture prevention benefits of continued Fosamax therapy in osteoporosis patients generally outweigh the minimal ONJ risk, especially when proper dental protocols are followed 2
- Patients with suspected ONJ should be referred to a dental practitioner or oral surgeon with expertise in treating this condition 1, 2
- Risk of ONJ increases with frequency, dose, and duration of bisphosphonate administration 1, 2
- Concurrent chemotherapy, corticosteroid use, poor oral hygiene, and pre-existing dental infections increase ONJ risk 2