AKA

Small-Diameter Dental Implants

1940s, the

metal implant

was first born

as a

subperiosteal

implant.

1960s that the

root form

(invented by

Dr. Brånemark)

made its

debut.

. Derived from

the root form

that was born

in the 1970s,

the mini-

dental implant

was being

developed and

modified as

early as 1976

Mini-implants,

which were

first developed

by Dr. Victor I.

Sendax of New

York

Dr. Ron Bulard

then

developed

mini dental

implants

(MDIs) as a

way to

stabilize

removable

prosthetics

and later

marketed by

IMTEC

Corporation in

the 1990s

FDA approval

for long-term

use of its MDI

mini-dental

implant

devices in

2002

Source: http://www.dentistryiq.com/articles/dem/print/volume-11/issue-4/focus/the-growing-popularity-of-mini-dental-implants.html

MDIs are generally constructed from titanium either sprayed with calcium phosphate, or contain it along the length of the screw portion.The head portion of the implant looks very much like a ball.This ball fits firmly into the retaining mechanism( metal housing) and together these structures hold the dentures at a designated level.

Use of SDIs in Approximate Order of Decreasing Frequency of Use

•Edentulous mandible

•Removable partial denture

•Edentulous maxilla (this use has higher failure rate than edentulous mandibles)

•Augmentation of fixed prosthesis

•Sole support of fixed prosthesis

•Salvage of previously made prosthesis

Source: http://www.dentistrytoday.com/articles/articles/178-dental-products/2646-the-truth-about-small-diameter-implants

Easier cleaning.

Firmer denture fit.

High success rate. Less discomfort.

No cutting or sutures.

No need for adhesives or messy bonding agents.

No slipping, wobbling or discomfort.

Permanent results.Quick treatment time.Reduced costs.Used in patients with inadequate bone quantity (linguo-facial)Can be used in patience with Compromised Physical Condition

MDIs have substantially lower bite force tolerance than standard implants, which may make them more likely to bend or break over time.

Vertical bone requirementSince the mini implants require bones to support them, they cannot be used in an area of the jaw with inadequate vertical bone or if there has been too much bone loss.

Teeth GrindingYou might not be a good candidate for mini dental implants if you grind your teeth regularly as it may wear them down prematurely.

Source: http://www.cambridgefamilydentists.com/the-pros-and-cons-of-mini-implants-dispelling-some-common-myths/

If you aren’t a candidate for conventional implants you cannot install mini implant◦ a patient who did not have sufficient bone thickness to accept a

couple large implants to anchor a full plate can get a structurally-superior solution by distributing the load evenly among four to six mini-implants.

Mini implants will feel awkward in my mouth◦ they look and feel just like your own natural teeth◦ kinder impact on gum tissues and bone

Mini implants aren’t a long-term solution◦ It preserves oral health, including gum health and healthy bone, better

than other types of replacement teeth

There are disadvantages to installing mini dental implants◦ most disadvantages are the result of poor planning or inexperienced

practitioners.

Source: http://www.cambridgefamilydentists.com/the-pros-and-cons-of-mini-implants-dispelling-some-common-myths/

Clinically, measure bone thickness using caliper (min. of 4mm needed)Measure thickness of mucosa using periodontal probeRadiograph: determine vertical and horizontal bone heightPlace metal markers in old dentures to reference position of foramen mentalisDigital planning of position of implants

1. Local Anesthesia2. Template - transfer of distal

implantation site3. Use probe to set bleeding

point on the mucosa4. Pilot drill – single use only.

Used as parallel post.5. Drilling should be done with

saline solution as external cooling

6. implants must be placed slowly. Short break in each quarter turn to prevent thermal damage

7. Thumb wrench is used when resistance gets high

8. graduated torque wrench for last winding and postion

1. Take impression: soft silicone material

2. Imprints will be transfer to the resin

3. Extend the marks to ensure contact free seating of the metal housing and prosthesis

4. blockout shim (silicone rings) are used so that no prosthetic resin will flow under the metal housing

• height no greater than distance the gingiva and metal housing

5. Fit metal housing

6. Place adhesive, dry for 30 sec

7. Place resin

8. Let the patient bite moderately for 6-8 min

9. check occlusion

10. Remove excess resin

11. Polish

12. Fit to patient. Check support and occlusion