Vu Orthodontics - Orthodontics, Periodontics, and Implants

Dosage and Instructions

Major dental surgeries include extracting impacted wisdom teeth (3rd molars), socket graft (for ridge preservation), GBR (Guided Bone Regeneration), horizontal or vertical ridge augmentation or both, sinus lift, GTR (Guided Tissue Regeneration, hard and soft tissues), and dental implants. The author routinely does bone graft for every tooth extraction if ridge preservation is needed. In the extraction case of mandibular 3rd molars, a bone graft is necessary to prevent bony defect distal to the 2nd molars. A study in the literature indicates that this type of bony defect more likely occurs with patients who are older than about 26 years old.

Disclaimer. To prevent possible infection associated with these procedures, especially with bone graft and implants, a brief discussion of medications (for adult patients) is presented here. But the author is not responsible for any foreseeable or unforeseeable adverse reactions or consequences. People must consult with their medical specialists.

1. Antibiotics (must): Amoxicillin, 500 mg, 1 PO (by mouth) 3x/d (t.i.d., or every 8 hr), for 7 days, then consult the dentist. The capsule may be taken either before or after a meal. (Amoxicillin belongs to the penicillin family.)

Alternative: Generally, if the adult patient is allergic to penicillin, then clindamycin is an alternative.  Recommended dosage: 300 mg, 3x/d (t.i.d, or every 8 hr), for 7 days. The capsule may be taken either before or after a meal. (Source: Actavis. Package leaflet: Information for the patient)

Warning: Some pharmarcist has reported that the major side effect of clindamycin is diarrhea (or severe diarrhea).  Reducing the dose of clindamycin from 600 mg to 300 mg would reduce the risk of having the side effect of diarrhea.  An alternative of clindamycin is azithromycin. 

Note that the loading dose (just before surgery) is double the maintenance dose. For example,  with amoxicillin, 1,000 mg is the loading dose, whereas 500 mg is the maintenance dose.

2. For chronic infection, metronidazole (Flagyl, Metrogel, Noritate) is also recommended to be used (in addition), 500 mg, 1 PO (by mouth) 3x/d (t.i.d.) or every 8 hr, for 7 days, then consult the dentist. Its dose and usage are the same as with amoxicillin, for convenience. 

Metronidazole is excellent for controlling anaerobes but not aerobic and facultative anaerobic bacteria. If metronidazole is prescribed, the patient must be warned about not consuming any alcohol which may cause a number of unpleasant side effects, including headaches, stomach cramps, nausea, vomiting, flushing, and irregular heartbeat.

3. Pain control (if needed, PRN): 

a) Ibuprofen (Advil, Motrin), 600 mg, 1 PO every 4-6 hr PRN (abbreviated for the Latin term, "pro re nata" which translates to "as needed").  It is not absolute, but the recommended maximum dose for ibuprofen is 3,000 mg per 24 hr (or 5x/d, for this dose of 600 mg per tablet or capsule), to avoid toxicity to the kidneys.

The medication must be taken with food to avoid stomach upset or reduce the risk of side effects. Note that ibuprofen has a weak anti-inflammatory property.

People with the following conditions should not take ibuprofen: allergies, Stevens-Johnson syndrome, pregnant women, fluid retention resulting from cardiovacular disease, bleeding disorders, bipolar disorder, obsessive-composive disorder, etc. (Source: Dr. Tom Viola, Dentistry iQ)

Warning: Do not take ibuprofen just before or right after surgery because it would cause bleeding. 

b) Tylenol Extra Strength (500 mg), 1 PO every 4-6 hr PRN. Tylenol may be taken with or without food. It is not absolute, but the recommended maximum dose for Tylenol is 3,000 mg per 24 hr, to avoid toxicity to the liver.

4. Anti-swelling (should): Prednisone, 20 mg, 1 PO, daily (1x/d  or q.d.), with food, for approximately the 1st 3 or 4 days (post-surgery, depending on the level of swelling/inflammation), then consult the dentist. Take it with food to avoid stomach upset.

After some major surgeries, significant swelling may occur to some patients, and typically worse on the 2nd or 3rd day. Note that this short-term use of steroids (a few days or less than a week) is safe. As an alternative, some clinicians recommend using an ice pack for control of swelling.

Some patients may have a concern with taking Prednisone since it is a steroid.  In general, using Prednisone together with ibuprofen may increase the risk of side effects in the gastrointestinal (GI) tract.  These include inflammation, bleeding, and ulceration. Though unlikely, GI perforation might also occur, which is a serious medical emergency.  But, again, the short-term use of Prednisone is harmless.

Warning: People should not take Prednisone with the following condition: bleeding disorders.

5. Mouth rinse (optional): to prevent infection on the surface of the surgical site): chlorhexidine (CHX or Peridex generic, 0.12%), 2x/d (b.i.d) or every 12 hr. Swish-then-spit CHX for 30 s, and then spit it out.  Do not rinse, drink, or eat, for about half-an-hour. Use it about 24 hr after the surgery. Note that CHX does kill fibroblasts, but the advantage outweighs the risk.  CHX does not penetrate deep into the tissue.

A typical CHX mouth rinse (0.12%) contains 11.6% alcohol and can be purchased from pharmacies, with a prescription.   The CHX mouth rinse that is without alcohol can also be purchased from a dental supplier, but not through a typical pharmacy. The side effects of long-term use of CHX are teeth staining and taste alteration.

Note that patients shall not use the typical Listerine to avoid sloughing off the soft tissue. The typical Listerine contains 22.6% alcohol. As an alternative, LISTERINE ZERO® (the alcohol-free mouthwash) may be used.