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Read our ADA compliance disclosure. Home About Meet Dr. Benefits of Mini Dental Implants While traditional dental implants are usually considered the best choice, mini dental implants may be better for certain candidates.
Benefits of mini dental implants include: No need for a bone graft Suitable for patients with significant bone loss Fewer surgeries required Can be placed in just one appointment Traditional dental implants require two appointments - one to place the implant, and a second to place the abutment and crown after the implant has integrated with your jawbone. Candidates for Mini Dental Implants The best candidates for mini dental implants are patients who have bone loss in the jaw that prevents placement of a regular dental implant.
Ideal candidates for a mini dental implant: Do not smoke Take good care of their teeth Visit the dentist regularly Do not grind their teeth Do not have gum disease Smoking greatly increases the chance of implant failure, so the best candidates for this procedure are people who do not smoke or who are able to quit. The placement sites were marked on the radiograph between the canine and first bicuspid anterior to the mental foramen as well as in the region of lateral incisors anteriorly Figure 2.
Next, depending on the size and type of prosthesis, the quantity of mini implants to use was determined. The primary author recommends the placement of four mini implants for the stabilization of a full mandibular denture. While four mini implants may also be sufficient for a maxillary denture stabilization procedure, six are recommended if a palateless denture is being considered.
For single tooth replacement one mini implant is used for anterior and bicuspid teeth, while for molars, often two mini implants are used. The next step was to determine the appropriate mini dental implant size. The longest mini dental implant possible for the available bone should always be used.
The minimally invasive nature of using a small 1. In this study or otherwise, the primary author has not encountered any cases of osteonecrosis with mini implants, even in patients who are immunocompromised or taking multiple medications.
For a detailed study on implant size selection, see the noted references. These marks were used to confirm planned implant placement positions. Infiltration anesthesia was then used between the periosteum and bone. Local anesthetic was injected on the mark, lingual to the mark, and buccal to the mark, at each location. Though a local anesthesia block of the inferior alveolar nerve is used in many dental procedures, it is not recommended for mini dental implant placement.
The pilot hole for the mini implants was then made using a 1. Using sterile surgical techniques 17 the dentist drilled to the appropriate depth based on bone density evaluation and implant type selected. A pilot drill guide Figure 6 was used to position the pilot hole in the center of the surgical stent sleeve and maintain correct trajectory of the drill.
The implant was first removed from its package using either the finger driver or a contra angle adapter. This prevented the sterile surface of the implant from being contaminated. The implant was then inserted into the pilot opening through the surgical stent and gingiva, and into the bone. The implant was slowly rotated clockwise with a drill or hand instrumentation using downward pressure until firm, bony resistance was detected. The implant was inserted until all threads were subgingival and the top of the polished collar was flush with the top of the gingiva.
At this point the clinician knows that the implant is seated to the proper depth of placement Figure 7. If extremely dense bone was present, as is often the case in the anterior mandible, a ratchet wrench was used for the final rotations of implant insertion. The ratchet wrenching was done using very slow incremental turns, which allowed full insertion of the implant without implant fracture or stripping of bone.
If very heavy resistance was noticed, the implant was removed by rotation in the reverse direction and the pilot hole was made deeper, or a shorter implant was used. Through the entire rotation procedure, pressure was constantly applied on the head of the ratchet in the direction of desired insertion.
The mini dental implants used in this study were inserted such that the square neck portion of the implant was supragingival. O-ring housing abutments were then placed on the O-balls of the mini implants Figure 8. The holes in the denture were then filled with a housing resin or cold-cure acrylic. Before these materials set, the denture was placed on the O-ring housings and seated firmly. The patient was instructed to bite down for 3 to 5 minutes. The denture was then removed and the firmness of the housings was assessed.
If housings were loose, the appropriate acrylic was applied. The denture with housings was then smoothed and adjusted to avoid patient discomfort and sore spot development Figure 9. A postoperative radiograph can be seen in Figure Postoperative instructions were given to the patient, and an appointment was scheduled for 24 hours after placement.
Patients were told to wear their dentures continuously for the first 24 hours to allow the tissue surrounding the implants to heal without advancing up around the neck and O-balls of the implants.
It is important that any dentist considering using mini dental implants be adequately educated in the surgical aspects of implant placement. Like standard dental implants, mini implants are made of titanium and are inserted into the jawbone.
Originally, mini implants were used primarily as a means of securing a temporary crown, bridge or denture after standard dental implants were placed, providing a cosmetic solution as the implant was given time to integrate into the jawbone. Today, use of mini dental implants as the foundation for a variety of dental reconstruction procedures is becoming common, ranging from stabilizing removable dentures to securing permanent dentures, bridges and crowns.
Dental professionals who are proponents of these uses for mini implants point out that the surgical procedure to place these smaller diameter implants is quicker and less invasive than standard implant placement, and can often be done in situations where bone loss or small spaces makes traditional implants difficult to place.
These factors make reconstruction with mini dental implants a less costly option than standard implants, and both the procedure and recovery times are shorter. Additionally, these implants are less expensive than standard implants, further reducing the costs of treatment.
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