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Mini Implants

Minimally invasive denture stabilisation

Mini Dental Implants

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  • Learn more about additional treatment options in implantology with MDI Mini Dental Implants
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Mini Dental Implants

Mini Dental Implants Due to their small diameter of 1.8mm - 2.4mm, 3M™ ESPE™ MDI™ Mini Dental Implants are well suited for atrophied bone, often without the need for bone grafting.¹ Just one session might be enough to achieve long-term stabilisation of the denture¹ and positively impact your patient's quality of life²

References
¹Ahn M-R, An K-A, Choi J-H, Sohn D-S. Immediate loading with mini dental implants in the fully edentulous mandible. Implant Dent 2004; 13: 367-372.
²Griffitts, T. M., Collins, C. P., Collins, P. C. Mini dental implants: An adjunct for retention, stability, and comfort for the edentulous patient. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology, 100 (5): E81-E84, 2005

 

Product information

Features and benefits

Mini Implants Diagram
Mini Implant screws
  • Minimally invasive protocol¹
  • Often no grafting necessary¹
  • Immediate load possible in the mandible (stabilisation of dentures)¹
  • Very cost-effective for the dental practice²
  • Available diameters: 1.8 – 2.1 – 2.4 mm
  • Available lengths: 10 – 13 – 15 – 18 mm
  • Available abutmens: O-Ball Head – Square Head
  • Variants: collared (thick gingiva) – classic (thin gingiva)

¹Ahn M-R, An K-A, Choi J-H, Sohn D-S.(2004) Immediate loading with mini dental implants in the fully edentulous mandible. Implant Dent
13: 367-372.
²Griffitts, T. M., Collins, C. P., Collins, P. C. Mini dental implants:(2005). An adjunct for retention, stability, and comfort for the edentulous patient. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology, 100 (5): E81-E84

 

 

Indications

  • Long-term full denture stabilisation
  • Long-term partial denture stabilisation
  • Long-term fixation of small bridges

Functional principles

 

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Pilot drill and implant insertion

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Soft loading

Implants are placed through a small pilot hole which is prepared with a 1.1 mm drill. No full osteotomy! Usually, the average depth is one-third to one-half the threaded length of the implant.

  • A transgingival procedure is possible in many cases.¹
  • The self-tapping design offers maximum primary stability (principle of osseo-compression). Especially in the mandible, immediate loading is therefore often possible (denture stabilisation).¹
  • Prosthetic concept for denture stabilisation = soft loading: O-Rings in the attachments offer retention and simultaneously absorb the load. Original retention can be restored by simply changing an O-Ring. The dentures are still tissue-borne and thus, the load is not carried by the implants to the full extent.²
  • Attachment designs with O-Rings forgive up to 30° divergence between two implants.¹

¹Ahn M-R, An K-A, Choi J-H, Sohn D-S.(2004) Immediate loading with mini dental implants in the fully edentulous mandible. Implant Dent 13: 367-372.
²Griffitts, T. M., Collins, C. P., Collins, P. C. Mini dental implants:(2005). An adjunct for retention, stability, and comfort for the edentulous patient. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology, 100 (5): E81-E84

 

Ordering information for Implants

  Classic MDI implants with O-ball without collar  
S1810OB - S1818OB

MDI 1.8 mm implant

 

Material: Titanium Grade 5 (titanium alloy Ti 6Al 4V)
One-piece implant without collar
Indication: mandibular denture stabilization, gingival height < 2 mm
Sterile packed
Ø= 1,8mm
L= 10/13/15/18 mm (the indicated lengths refer to the respective length of the thread!)
Corresponding lab analog: #5118

#S1810OB Ø= 1.8mm L: 10mm
#S1813OB Ø= 1.8mm L: 13mm
#S1815OB Ø= 1.8mm L: 15mm
#S1818OB Ø= 1.8mm L: 18mm
 

MDI 1,8mm Implantat
 
S1810IOB - S1818IOB

MDI 2.1 mm implant

 

Material: Titanium Grade 5 (titanium alloy Ti 6Al 4V)
One-piece implant without collar
Indication: mandibular denture stabilization, gingival height < 2 mm
Sterile packed
Ø= 2.1mm
L= 10/13/15/18mm (the indicated lengths refer to the respective length of the thread!)
Corresponing lab analog: #5118

#S1810IOB Ø= 2.1mm L: 10mm
#S1813IOB Ø= 2.1mm L: 13mm
#S1815IOB Ø= 2.1mm L: 15mm
#S1818IOB Ø= 2.1mm L: 18mm
 

MDI 2,1mm Implantat
 
S1810MOB - S1818MOB

MDI 2.4mm implant

 

Material: Titanium Grade 5 (titanium alloy Ti 6Al 4V)
One-piece implant without collar
Indication: maxillary denture stabilization, gingival height < 2 mm
sterile packed
Ø= 2.4mm
L= 10/13/15/18mm (the indicated lengths refer to the respective length of the thread!)
Corresponding lab analog: #5118

#S1810MOB Ø= 2.4mm L: 10mm
#S1813MOB Ø= 2.4mm L: 13mm
#S1815MOB Ø= 2.4mm L: 15mm
#S1818MOB Ø= 2.4mm L: 18mm

 

MDI 2,4mm Implantat
 
  MDI Implants with O-ball and collar  
OB-10 - OB-18

MDI 1.8 mm implant

 

Material: Titanium Grade 5 (titanium alloy Ti 6Al 4V)
One-piece implant with polished collar

Indication: mandibular denture stabilization, gingival height > 2 mm
Sterile packed
Ø= 1.8mm
L= 10/13/15/18 mm (the indicated lengths refer to the respective length of the thread!)
Corresponding lab analog: #LAOB

# OB-10 Ø= 1.8mm L: 10mm
# OB-13 Ø= 1.8mm L: 13mm
# OB-15 Ø= 1.8mm L: 15mm
# OB-18 Ø= 1.8mm L: 18mm

 

MDI 1,8mm Implantat
 
IOB-10 - IOB-18

MDI 2.1 mm Implantat

 

Material: Titanium Grade 5 (titanium alloy Ti 6Al 4V)
One-piece implant with polished collar

Indication: mandibular denture stabilization, gingival height > 2 mm
Sterile packed
Ø= 2.1mm
L= 10/13/15/18 mm (the indicated lengths refer to the respective length of the thread!)
Corresponding lab analog: #LAOB

# IOB-10 Ø= 2.1mm L: 10mm
# IOB-13 Ø= 2.1mm L: 13mm
# IOB-15 Ø= 2.1mm L: 15mm
# IOB-18 Ø= 2.1mm L: 18mm
 

MDI 2,1mm Implantat
 
MOB-10 - MOB-18

MDI 2.4 mm Implant

 

Material: Titanium Grade 5 (titanium alloy Ti 6Al 4V)
One-piece implant with polished collar

Indication: maxillary denture stabilization, gingival height > 2 mm
Sterile packed
Ø= 2.4mm
L= 10/13/15/18 mm (the indicated lengths refer to the respective length of the thread!)
Corresponding lab analog: #LAOB

# MOB-10 Ø= 2.4mm L: 10mm
# MOB-13 Ø= 2.4mm L: 13mm
# MOB-15 Ø= 2.4mm L: 15mm
# MOB-18 Ø= 2.4mm L: 18mm

MDI 2,4mm Implantat
 
  MDI Implants with square head and collar  
SH10 - SH18

MDI 1.8 mm Implant

 

Material: Titanium Grade 5 (titanium alloy Ti 6Al 4V)
One-piece implant with polished collar

Indication: fixed restorations in the mandible
Sterile packed
Ø= 1.8mm
L= 10/13/15/18 mm (the indicated lengths refer to the respective length of the thread!)
Corresponding lab analog: #LASH

# SH-10 Ø= 1.8mm L: 10mm
# SH-13 Ø= 1.8mm L: 13mm
# SH-15 Ø= 1.8mm L: 15mm
# SH-18 Ø= 1.8mm L: 18mm
 

MDI 1,8mm Implantat
 
MSH10 - MSH18

MDI 2.4 mm Implant

 

Material: Titanium Grade 5 (titanium alloy Ti 6Al 4V)
One-piece implant with polished collar

Indication: Fixed restorations in the maxilla
Sterile packed
Ø= 2.4mm
L= 10/13/15/18 mm (the indicated lengths refer to the respective length of the thread!)
Corresponding lab analog: #LASH

# MSH-10 Ø= 2.4mm L: 10mm
# MSH-13 Ø= 2.4mm L: 13mm
# MSH-15 Ø= 2.4mm L: 15mm
# MSH-18 Ø= 2.4mm L: 18m


 

MDI 2,4mm Implantat
 

Prosthetics components

 
 
Prosthetic components  

Standard Metal Housing (accommodates O-Ring)

 

Material: Grade 5 Titanium (titanium alloy Ti 6Al 4V)
Diameter: 4.75 mm
Height: 3.6 mm

(Item No: MH-1)

 

Matrize mit Retentionseinsatz
 

Micro Metal Housing (accommodates O-Ring)

 

Material: Grade 5 Titanium (titanium alloy Ti 6Al 4V)
Diameter: 4.3 mm
Height: 3.3 mm

(Item No: MH-2)

 

Matrize mit Retentionseinsatz
 

O-Cap Metal Housing (accommodates O-Ring)

 

Material: Grade 5 Titanium (titanium alloy Ti 6Al 4V)
Diameter: 4.0 mm
Height: 3.0 mm

(Item No: MH-3)
 

Matrize mit Retentionseinsatz
 

Replacement O-Ring for Metal Housing MH-1 (single)

 

Material: nitrile
(Item No: 0550-01)
 

Ersatz O-Ring für MH-1
 

Replacement O-Ring for Metal Housing MH-1 (pack of 10)

 

Material: nitrile
(Item No: 0550-10)
 

Ersatz O-Ring für MH-1
 
 

Replacement O-Ring for Metal Housing MH-1 (pack of 25)

 

Material: nitrile
(Item No: 0550-25)

Ersatz O-Ring für MH-1
 

Replacement O-Ring for Metal Housing MH-2 and MH-3 (single)

 

Material: nitrile
(Item No: 0351-01)
 

Ersatz O-Ring für MH-2 und MH-3
 

Replacement O-Ring for Metal Housing MH-2 and MH-3 (pack of 10)

 

Material: nitrile
(Item No: 0351-10)

Ersatz O-Ring für MH-2 und MH-3
 

Replacement O-Ring for Metal Housing MH-2 and MH-3 (pack of 25)

 

Material: nitrile
(Item No: 0351-25)

Ersatz O-Ring für MH-2 und MH-3
 

1.4mm MDI Diamond Bur

 

Used for retention reduction of O-rings
Single unit

(Item No: S1014)
 

1,4mm Diamantfräse
 
SECURE  

3M ESPE SECURE™ Hard Pick-Up Kit

 
  • Cold-curing resin for insertion of the metal housing into the prosthetic basis
  • very low heat development while polymerizing
  • Odorless and tasteless
  • Colour stability
  • Creates a smooth surface

Item No. 8720 contains:

  • 50ml safety cartridge of hard pick-up material
  • 10 ml adhesive
  • Accessories

(Item No: 8720)
 

IMTEC SECURE (Hard Pick-Up Kit)
 


 
 

3M ESPE SECURE™ Soft Reline Kit

 
  • Soft reline material
  • High biocompatibility
  • Stable adhesion to the denture material
  • Easy to clean and retains permanent elasticity

Item No. 8120 contains:

  • 50ml safety cartridge of soft reline material
  • 10ml glazing catalyst & 10ml glazing base
  • 10ml adhesive
  • Accessories

(Item No: 8120)
 

IMTEC SECURE Soft™ (Soft Reline Kit)
 

3M ESPE Garant Dispensing Gun

 
  • Dispensing Gun (1:1, 2:1) for the application of all types of impression materials and Secure cartridges
  • Controlled automatic dosage and mixing

(Item No: 77580)
 

SECURE Anmischpistole
 

Insertion Tips Type 1 (Pack of 10)

 

(Item No: 8366-10)
 

Einbringspitzen, Typ 1
 

Mixing Tips (Pack of 10)

 

(Item No: 8448-10)
 

Mischkanülen
 

Adhesive Brushes (Pack of 120)

 

(Item No: 3402)
 

 
 
Lab Analogs and Restorative Copings  

MDI O-Ball Prosthetic Head Analog (for implants without collar)

 

(Item No: 5118)
 

MDI Kugelkopfanalog
 

MDI Collared Standard O-Ball Analog (for implants with collar)

 

(Item No: LAOB)
 

MDI Kugelkopfanalog (für Implantate mit Kragen)
 

MDI Collared Standard Square Head Analog (for implants with collar)

 

(Item No: LASH)
 

MDI Vierkantkopfanalog (für Implantate mit Kragen)
 

MDI Impression & Waxing Coping
Compatible with O-Ball & Square Head Implants.

 

(Item No: S4118)
 

Ausbrennbare Kunststoffkappe für Prothetik
 

O-Ball Impression Coping
Note: not compatible with Square Head Implants!

 

(Item No: 2921)
 

Abdruckkappe für Kugelanker
 

MDI O-Ball Immediate Temporization Cap
Note: not compatible with Square Head Implants!

 

(Item No: 2924)
 

Kunststoffkappe für direkte provisorische Versorgung
 

Blockout Shims (pack of 25)

 

(Item No: S1010)
 

Distanzstück
 

MDI Hybrid Lab Analog Kit O-Ball Abutment
Contains: (MII-LA; 2921; 2924)

 

(Item No: MII-LAKO)
 

 
 

MDI Hybrid Lab Analog Kit Tapered Abutment
Contains: (MII-LA; 2920; 2923)

 

(Item No: MII-LAKT)
 

 
 

Ordering information for Instruments and accessories

 
 

MDI Surgical and Restorative Kit

 

1303: 1x MDI Surgical Box
8070: 1x Adjustable Torque Wrench
1030: 1x Titanium Locking Pliers
S1011: 5x MDI 1.1 mm Surgical Drill
S9030: 1x MDI Finger Driver
S9032: 1x MDI Winged Thumb Wrench
S7007: 1x MDI-Ratchet Adapter Short
8016: 1x Ratchet Extension 16 mm
S1010: 1x Blockout Shims (pack of 25)
8720: 1x SECURE™ Hard Pick-Up Kit
(Item No: S1806)

 

MDI Surgical kit

 

0121: 1x MDI Small Surgical Box
8070: 1x Adjustable Torque Wrench
S7007: 1x Ratchet Adapter
S9030: 1x MDI Finger Driver
S9032: 1x MDI Winged Thumb Wrench
S1011: 3x 1,1 mm Surgical Drill
S1010: 1x Blockout Shims (Pack of 25)
(Item No: S1807)

 
Site Preparation  

Ridge Mapping Caliper

 

Ridge mapping for determination of alveolar ridge width

(Item No: 1325)
 

Knochenmesszirkel
 

1.5 mm Disposable Tissue Punch

 

Sterile Packed; for single patient use

(Item No: S0150)
 

Knochenmesszirkel
 
Surgical drills  

MDI 1.1 mm Surgical Drill

 

Sterile packed (for single patient use)

(Item No: S1011)
 

MDI 1,1 mm Pilotbohrer
 

Locator Drill

 

Sterile packed; reuseable

(Item No: 2020)
 

Vorkörner
 

1.4 mm Round Bur

 

Sterile packed, reuseable

(Item No: 2013)
 

1,4 mm Rosenbohrer
 

MDI 1.3 mm Surgical Drill

 

Non-sterile packed, reuseable

(Item No: S1013)
 

MDI 1,3 mm Pilotbohrer
 

Irrigated Drill Extender

 

Ø= 3.5mm
Sterile packed
Material: Surgical steel

(Item No: 2000)
 

Bohrerverlängerung innengekühlt
 
Locking Pliers  

Locking Plier for Implants

 

Material: Titanium

(Item No: 1030)
 

Feststellpinzette
 
Insertion Instruments  

MDI Finger Driver

 

For initial insertion

(Item No: S9030)
 

MDI Initialschraubendreher
 

MDI Winged Thumb Wrench

 

(Item No: S9032)


 
MDI Flügelschrauber
 

Ratchet Wrench

 

For final insertion

(Item No: 8010)
 

Graduated Torque Wrench
 

Adjustable Torque Wrench

 

including Adapter 4mm square

Torque: 10 - 70 Ncm

(Item No: 8070)
 

Graduated Torque Wrench
 

Replacement O-Ring for Insertion Instruments (Pack of 10)

 

(Ratchet Extension, Ratchet Adapter or Initial Finger Driver)
Material: nitrile

(Item No: 0551-10)

Ersatzring für das Einbringinstrumentarium
 
MDI Ratchet Adapter  

MDI Ratchet Adapter Short

 

Height: 5 mm

(Item No: S7007)
 

MDI Ratschenadapter
 

MDI Ratchet Adapter Medium

 

Height: 9mm

(Item No: S7011)
 

MDI Ratschenadapter
 

MDI Ratchet Adapter Long

 

Height: 13mm

(Item No: S7015)
 

MDI Ratschenadapter
 

Ratchet Wrench Extension

 

Height: 16mm

(Item No: 8016)
 

MDI Ratschenverlängerung
 

MDI Surgical Box

 

Instruments are not included

(Item No: 1303)
 

MDI Chirurgiekassette
 

Small Surgical Box

 

Instruments are not included

(Item No: 0121)
 

Kleine Chirurgiekassette
 
ACCESS Oral Care  

ACCESS Toothbrush Bristle Density # 1 (hard)

 

Pack of 12

(Item No: 6008-12)
 

ACCESS-Zahnbürste
 

ACCESS Toothbrush Bristle Density # 2 (medium)

 

Pack of 12

(Item No: 6009-12)

ACCESS-Zahnbürste
 
Patient Demonstration Models  

MDI Model Mandible Clear Acrylic Base

 

(Item No: SMDI-001)
 

MDI-Unterkiefermodell, klare Basis
 

MDI Model Maxilla Pink Acrylic Base

 

(Item No: SMDI-003)
 

MDI-Oberkiefermodell, klare Basis
 

MDI Model Mandible Pink Acrylic Base

 

(Item No: SMDI-004)
 

MDI-Unterkiefermodell, Hautbasis
 

 

Clinical application

Denture Stabilization in the Mandible, Dr. Winfried Walzer, Berlin, Germany.

The full case study can be downloaded here.

An edentulous male patient in his mid 40s came to our dental practice in Berlin since he had problems with his mandibular denture. He reported that he used denture adhesives for fixation. Nevertheless, functionality and stability of this prosthesis were insufficient – it was so loose that he even had difficulty chewing. Since he was not able to carry the financial burden of a conventional implant treatment and desired a quick, comfortable solution, it was decided to place four MDI Mini Dental Implants in the anterior mandible for denture stabilization. Since the old prosthesis was in poor condition, the dentist, dental technician and patient agreed that a new denture should be fabricated in the dental laboratory.

Figure 1

Figure 1: The MDI Mini Dental Implants are available in four different diameters …

Figure 2

Figure 2: ….. and four lengths

Figure 3

Figure 3: Determination of the soft tissue depth using a periodontal probe

Figure 4

Figure 4: Marking of the implant positions in the mouth using a template

Figure 5

Figure 5: Blood indicates the desired implant locations

Figure 6

Figure 6: Drilling a pilot hole to a depth of one third to one half o the selected mini implant

Figure 7

Figure 7: Placement of the first mini dental implant

Figure 8

Figure 8: Implant insertion using a finger driver

Figure 9

Figure 9: Implant insertion using a winged thumb driver

Figure 10

Figure 10: Putting the implant into its final position with a torque wrench at a torque of 35 to 45 Ncm

Figure 11

Figure 11: Inserting the implants in the desired orientation

Figure 12

Figure 12: The four implants in correct positions

Figure 13

Figure 13: Marking of the implant positions on the denture base

Figure 14

Figure 14: Base prepared for polymerization

Figure 15

Figure 15: Placing the blockout shim on one of the implants

Figure 16

Figure16: The trimmed blockout shim in its ideal position

Figure 17

Figure 17: Placing the prosthesis in the patient’s mouth.

Figure 18

Figure 18: The acrylic sets intraorally under occlusion with normal pressure

Figure 19

Figure 19: Metal housings fixed in the openings of the denture base

Figure 20

Figure 20: The mechanical load is not carried by the implants alone

Studies and science

Shatkin TE, Shatkin S, Oppenheimer BD, Oppenheimer AJ, Compendium 2007

Mini dental implants for long-term fixed and removable prosthetics: A retrospective analysis of 2514 implants, placed in 531 patients over 5.5 years (mean 2.9 years)

  • Minimal exclusion criteria: Severely atrophic bone, active intraoral infection
  • Cox Proportional Hazard Model applied for risk evaluation
  • Overall 145 Implants failed (5.8%, mobility with/without suppuration), only 2 cases failed!

Authors describe a learning curve with placement experience.

Type prosthesis Survival rate
Full lower denture 95%
Full upper denture 83%
Partial lower denture 93%
Partial upper denture 92%

Mean survival rate 90% for removable prosthesis
(implant success criteria by Buser et al.)

Mandible: 95%
Maxilla: 84%

Bulard RA, Vance JB, Compendium 2005

Multi-clinic evaluation using mini-dental implants for long-term denture stabilization

A total of 1029 implants were evaluated over 4 months to 8 years

Mean survival rate : 91,2 %

  • Including Clinic‘s E failure rate of 31%!
    (Clinic E did not follow the protocol but used full osteotomy instead)

Mean survival rate excl. Clinic E: 94 %

  • Success criteria by Albrektsson et al.
  • „The overall success of the MDI system is affected by careful case selection and strict adherence to the recommended insertion / reconstructive Protocol“
Figure 1

Figure 1: Mean implant mortality rates for participating clinics

Griffitts TM, Collins CP, Collins PC, Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2005

Mini dental implants: An adjunct for retention, stability, and comfort for the edentulous patient

  • 116 Implants in 30 patients, lower & upper dentures, 24 patients evaluated (five months post op)
  • „Patients were satisfied with their retention, comfort, and chewing ability“
  • „In our practice the cost of 4 MDIs is equal to one conventional implant“
Aspect Results
Survival rate (1y) 97.4%
subjective Rating of: before > afterwards (1 = poor, 10 = excellent)
retention 1.7 > 9.6
comfort 2.2 > 9.4
chewing ability 2.3 > 9.3
speaking ability 5.3 > 8.5

Burton E. Balkin, David E. Steflik, MS, Francie Naval, Journal of Oral Implantology 2001; 27, 32-37:

Mini-Dental Implant insertion with the auto-advance technique for ongoing applications

Histological evaluation of bone- implant interface, 2 retrieved human biopsies, 4 and 5 months post-op.

Figure 17

Low magnification photomicrograph shows close bone congruency to the implant surface

Figure 17

Higher magnification reveals osteocytes within their lacunae

Videos/Downloads

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