MDL® Surgical & Prosthetic Technique Manual - Intra-Lock

MDL Surgical & Prosthetic Technique
® Surgical & Prosthetic Technique
MDL ® Surgical Protocol
MDL ® Chairside Denture Retentive Pickup Procedure
MDL ® Abutment Protocol

(Fig. 1) The MDL ® 1.2mm Pilot
Drill breaches the gingival tissue.
(Fig. 4) Using Drive-Lock
Technology, an MDL ® Implant is
removed from its sterile container.
(Fig. 7) An MDL ® Ratchet Driver
with a Ratchet Wrench is used.
(Fig. 2) Copious sterile saline
irrigation is recommended.
(Fig. 5) MDL ® ’s sharp apical guiding
point initiates self-tapping action.
(Fig. 8) Small incremental turns takes
advantage of bone’s viscoelastic nature.
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(Fig. 3) Care is taken to breach
the cortical plate.
(Fig. 6) … threading and expanding
the bone at the same time.
(Fig. 9) Seating is accomplished
when the Ratchet Driver is flush
with the surrounding gingival tissue.

MDL ® Surgical Procedure
Overdenture Stabilization
The Mini Drive-Lock Surgical Kit organizes all instrumentation necessary for the procedure and features a
convenient stainless-steel tray that is easily removed and placed in the sterile operator field.
Light, repeated, intermediate, vertical introduction of the MDL ® 1.2mm Pilot Twist Drill breaches the gingival
tissue and periosteum (Fig. 1). Copious sterile saline irrigation is recommended (Fig. 2). Drilling depth is
approximately one third the length of the implant with care taken to breach the cortical plate (Fig. 3).
MDL ® ’s are packaged suspended on titanium rings specially engineered to facilitate a no-touch delivery and
placement utilizing Drive-Lock technology (Fig. 4). The MDL ® Contra-Angle Driver (MDLCAD) is engineered
to slip over the O-ball assembly, firmly engaging the implant for direct delivery and initial seating.
Use a slow speed high-torque handpiece (15 RPM or less) and the MDL ® Contra-Angle Driver to begin to
insert the MDL ® Implant (Fig. 5). MDL ® ’s sharp apical guiding point initiates self-tapping action; threading and
expanding the bone at the same time (Fig. 6). The use of an electric motor with a torque-limiting feature set
to 35Ncm is recommended. The Torque-Lock ® Torque Wrench can also be used to determine the implant’s
torque resistance.
When the torque limiter stalls the handpiece or the Torque-Lock ® registers
approximately 35Ncm, an MDL ® Ratchet Driver (MDLRD) with a Surgical
Ratchet Wrench (SRA) is used (Fig. 7). Small incremental turns; with a pause
between each turn takes advantage of bone’s viscoelastic nature (Fig. 8).
MDL ® Implant seating is accomplished when the Ratchet Driver is
flush with the surrounding gingival tissue (Fig. 9).
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(Fig. 1) A soft lead pencil marks the
heads of the O-Balls.
(Fig. 2) An impression of the O-Balls is
transferred to the denture.
(Fig. 4) All openings are relieved. (Fig. 5) It is verified that the appliance is
seated passively.
(Fig. 7) All Retentive Housings are snapped
into place.
(Fig. 8) Appliance is seated passively in
maximum intercuspation.
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(Fig. 3) A resin bur relieves the opening.
(Fig. 6) A Retentive Housing is snapped
over the O-Ball.
(Fig. 9) Holes are punched in a rubber dam
at each implant site.

MDL ® Chairside Denture Retentive Pickup Procedure
Overdenture Stabilization
For chairside pickup of the MDL ® denture retentive component transfer the position of the O-Balls to the
tissue-bearing surface of the denture by marking the heads of the O-Balls with a soft lead pencil (Fig. 1)
or capturing their impression by inserting a strip of soft silicone or soft wax inside the denture. An impression
is clearly visible on the tissue-bearing surface of the denture (Fig. 2).
Using a resin bur, relieve the opening around the abutment impressions or markings in the denture
(Fig. 3 & 4).
Try the denture in the patient’s mouth and verify that the appliance is seated passively while in maximum
intercuspation. The O-Balls should not touch any part of the denture. Have the patient close into maximum
intercuspation and observe that the denture is stable and properly equilibrated at this point (Fig. 5).
Snap a Retentive Housing Assembly over each O-Ball (Fig. 6 & 7). Try the denture in the patient’s mouth
again and check to ensure that the appliance is seated passively while in maximum intercuspation (Fig. 8).
Remove the Retentive Housings. Punch holes in a rubber dam at each implant site (Fig. 9).
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(Fig. 10) The rubber dam is placed over
each abutment.
(Fig. 13) The abutment recesses are filled
with self cure resin.
(Fig. 16) The patient closes into maximum
intercuspation.
(Fig. 11) The O-Ball heads are left exposed
and lubricated.
(Fig. 14) This material is painted over each
housing.
(Fig. 17) The denture and the rubber dam is
removed.
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(Fig. 12) A Retentive Housing is snapped
over each O-Ball.
(Fig. 15) The denture is seated when the
acrylic becomes resistant to flow.
(Fig. 18) Flash is trimmed and any minor
voids or discrepancies filled.

MDL ® Chairside Denture Retentive Pickup Procedure (Cont.)
Overdenture Stabilization
Place the rubber dam over each abutment, leaving only the O-Ball heads exposed. Lubricate the O-Ball heads
(Fig. 10 & 11). These steps will prevent any acrylic lock-on.
Snap a Retentive Housing Assembly over each O-Ball in preparation for final seating (Fig. 12).
Clean, wash and dry the denture. Fill the abutment recesses with self cure resin (Fig. 13). Paint a small amount
of this material over each retentive housing (Fig. 14). As soon as the acrylic in the denture becomes resistant to
flow, seat the denture, keeping light, bilateral pressure on the occlusal surface (Fig. 15).
While maintaining light bilateral pressure on the denture, have the patient close gently into maximum
intercuspation (Fig. 16).
Allow the acrylic to fully polymerize. After the acrylic has set, remove the denture and the
rubber dam (Fig. 17). Trim flash and fill any minor voids or discrepancies. Ensure that
there are no sharp edges on the tissue-bearing surface of the denture (Fig. 18).
Recheck the occlusion. Confirm proper occlusal contacts.
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(Fig. 1) MDL ® Implant is surgically
placed in to position.
(Fig. 4) Loaded tray is placed for the
appropriate amount of time.
(Fig. 2) MDL ® Impression Coping (MDLT)
slides over the O-Ball Abutment.
(Fig. 5) Coping is firmly picked up in the
impression.
(Fig. 7) Working model is poured. (Fig. 8) Appropriate MDL ® Abutment is
prepared and cemented over the O-Ball
with resin cement.
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(Fig. 3) Pre-formed custom tray is loaded
with a monophase impression material.
(Fig. 6) MDL ® Laboratory Analog (MDLA)
is Inserted into the Impression Coping.
(Fig. 9) The prosthesis is cemented into
place after occlusion and esthetics are
confirmed.

MDL ® Cement-Over Abutment Preparation and
Impression Prosthetic Technique
Cement-Over Abutments*, available in Straight, 15 0 Angled, Wide, Plastic Castable, and Orthodontic
configurations, provide the clinician with an unsurpassed range of prosthetic options. Cement-Over
Abutments* can be prepared extra orally and simply fit over the O-Ball Assembly. Once cemented in place
with resin cement, abutment and implant form one unit; resistant and strong as a one-piece. An Analog and
Impression Coping complement the system.
Place an MDL ® Impression Coping (MDLT) over each O-Ball assembly (Fig. 2). It snaps on
and holds itself in place.
Load an impression tray, preferably with a monophase product (Fig. 3).
The loaded tray is placed for the impression material manufacturer's recommended time (Fig. 4).
The copings will be picked up in the impression material (Fig. 5).
Insert MDL ® Laboratory Analogs (MDLA) into the “captured” Impression Copings (MDLT) (Fig. 6).
Pour the working model either in the dental office or laboratory (Fig. 7).
Prepare and index the appropriate MDL ® Cement-On Abutment (Fig. 8).
Upon delivery of the prosthesis, the abutments are cemented over their
respective O-ball abutment assemblies with resin cement (e.g.: Core Paste by Denmat ® ).
Use only resin cement for this step (Fig. 9). The prosthesis is then placed and the fit,
occlusion and esthetics are confirmed by clinical and radiographic examinations. Upon
satisfaction of all parameters, cement the prosthesis into place with temporary cement.
A metal reinforced bridge is recommended for rigidity.
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Mini Drive-Lock Implants One Implant... Multiple Applications.
Mini Drive-Lock (MDL ® ) is Intra-Lock’s
one-piece small diameter dental implant.
The system is ideal for long-term denture
stabilization or fixed prosthetics. MDL ® is a
true 'convertible' implant with one-piece
solid strength and two-piece versatility.
Patented* Cement-Over Abutments, simply
fit over the O-Ball Assembly and convert the
implant from removable to fixed or orthodontic
treatment options. The system’s unique Drive-Lock
instruments reduce delivery and placement to one fluid
motion. Once in place, Intra-Lock’s extremely
hydrophilic, bio-active OSSEAN ® Surface promotes
rapid early healing and increased biomechanical fixation ** .
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• “Long-Term”
Applications
• OSSEAN ® Surface
Applied to Collar
and Body
• Cement-Over
Abutments
• Direct
Delivery

Prosthetic Components
Cement-Over 0 Abutments*, available in Straight, 15 Angled, Wide, Plastic Castable, and
Orthodontic configurations, provide the clinician with an unsurpassed range of prosthetic options.
Cement-Over Cement-Over
Abutments* can be prepared extra orally and simply fit over the O-Ball Assembly.
Once cemented in place with resin cement, abutment and implant form one unit; resistant and strong
as a one-piece. An Analog and Impression Coping complement the system.
Abutment System
MDLSA MDLAA15 WCA
MLHC
MDLA
MDLMH
MDLPA MDLOA
MDLOR MDLMOR
MDLT
MDLMMH
Cement-Over Abutments
Cements over O-Ball Assembly for fixed bridges, Straight ....................... MDLSA
Cements over O-Ball Assembly for fixed bridges, Angulated 15° ........
MDLAA15
Cements over O-Ball Assembly for fixed bridges, Wide .............................. WCA
Plastic Castable Abutment for fixed bridges ............................................. MDLPA
Orthodontic Abutment fits over O-Ball Assembly................................... MDLOA
Healing Abutments
Plastic Healing Cap for Press Fit on O-Ball Assembly ............................... MLHC
Mini Drive-Lock Metal Housing with O-Ring
O-Ring encapsulated in MICRO Metal Housing ................................. MDLMMH
O-Ring encapsulated in LARGE Metal Housing ..................................... MDLMH
MDL ® O-Ring Replacements
For MICRO Housing (Quantity of 10) ................................................. MDLMOR
For LARGE Housing (Quantity of 10) ..................................................... MDLOR
Mini Drive-Lock Impression Coping
Pick up Impression Coping ......................................................................... MDLT
Mini Drive-Lock Laboratory Analog
Replicates the MDL ® Implant and Abutment ............................................. MDLA
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GLOBAL HEADQUARTERS
6560 West Rogers Circle, Bldg. 24 • Boca Raton, Florida 33487 USA
Tel: 877-330-0338
www.intra-lock.com • info@intra-lock.com
Prior to the placement of MDL ® implants, appropriate and adequate training in all phases of MDL ® Implant procedures is strongly recommended.
A comprehensive patient interview, medical/dental history, treatment plan and a complete oral examination should be conducted.
Diagnostic radiographs and mounted study models, if appropriate, should also be obtained.
CE
Intra-Lock ® , OSSEAN ® , MDL ® Mini Drive-Lock are registered trademarks of Intra-Lock International, Inc.
Drive-Lock is a trademark of Intra-Lock International, Inc.
*U.S. Patent 7,033,174 - U.S. Patent 7,217,130 - U.S. Patent 7,131,840 and other U.S. & Foreign Patents Pending.
**Data on file.
0499 • EC Rep: Intra-Lock System Europa, Spa., I-84100 Salerno • © Copyright 2008, Intra-Lock ® System International • S4EN-08-6