- 69-yr-old male patient required recovery of occlusion, function, & esthetics using implant treatment Patient was admitted to hospital during 6 months for systemic disease
- Minimally invasive surgery was essential to avoid any surgical side effects
- GBR was included in first treatment planning, but rejected by patient
Panorama before surgery
CBCT & STL files used for implant planning, plus diagnostic wax-up used to confirm ideal implant positions
- R2GATE Guide, zirconia customized abutments, and provisional restoration were designed to recover immediate function & esthetics at same time
3D-printed R2GATE Guide & milled provisional restoration with customized abutments
- Implants were placed into both jaws using R2GATE Guide
- Minimally invasive surgery created small osteotomies
- Panorama after delivery of customized abutments & provisional restoration
- Healing abutments were used for posterior implants due to insufficient initial stability
Photo of provisional restoration
4 months after surgery, provisional restoration was switched to final Zirconia prosthesis
Panorama 4 months after surgery
Dr. Sang Tack Lee, edentulous, digital full mouth prosthetics, digital guided surgery, #11, #13, #14, #16, #17, #21, #23, #24, #26, #27, #33, #34, #36, #37, #43, #44, #46, #47, guided surgery, flapless, AnyRidge, R2GATE, Mega ISQ, MEG Torq, MEG Engine, R2GATE Full surgical kit
AnyRidge implant system, R2GATE Guide, R2GATE full surgical kit , Mega ISQ
Immediate functional loading of single implants: a multicenter study with 4 years of follow-up./J Dent Res Dent Clin Dent Prospect 2018; 12(1):26-37 | doi: 10.15171/joddd.2018.005
# 13, 14 implant placement using R2GATE GUIDE
# 13,14 gingival condition
Even when using surgical guide, open flap as needed
# 13,14 gingival condition
Check fit of R2GATE Guide
Drilling sequence based on bone quality according to R2 Digital Eye
#14, guided placement of AnyRidge 3.5x13mm
#13, guided placement of AnyRidge 3.5x13mm
GBR using Mega-Oss
Use of i-Gen membrane (Titanium mesh)
Sutures (occlusal surface)
Panoramic after surgery
Dr. Kwang Bum Park, digital guided surgery, bone regeneration, maxillary posterior, #13, #14, guided surgery, GBR, AnyRidge, i-GEN, Mega-Oss, R2GATE, R2GATE Full surgical kit
AnyRidge implant system, R2GATE Guide, R2GATE surgical kit (AnyRidge), Mega ISQ, Mega-Oss
#16 implant placement case using R2GATE GUIDE
- Immediate placement planning using R2Gate software
- AnyRidge 4.0×13 mm for good native bone engagement & stability
- Assessment of bone density using R2 Digital Eye shows D4 (red & dark blue)
Extraction of #15
Prefabricated temporary crown & R2GATE Guide
Drilling using R2GATE Guide
Implant placement using R2GATE Guide
Measuring initial stability quotient (ISQ)
Lining-up silver & green markings of implant carrier with built-in buccal window of R2GATE Guide for hex indexing (green indicates flat side of hex)
Occlusal surface of provisional restoration is shaved & used as custom healing abutment to avoid overloading, support soft tissue, & minimize tissue contour changes due to remodeling after extraction
Custom healing abutment after 10 weeks
New emergence profile
Final restoration & occlusion check
Dr. Sam Omar, Digital Guided Surgery, Digital ONE-DAY Implant, Maxillary Posterior, #16, Guided surgery, Loading, Flapless, AnyRidge, R2GATE, MEGA ISQ, R2GATE Full surgical kit
Implant system-AnyRidge, R2 Guide, R2GATE Full Surgical Kit, Mega ISQ,
How can primary stability be increased?
Primary stability is especially important in the case of poor quality bone. The instability of dental implants results in fibrous encapsulation and failed osseointegration (Lioubavina-Hack, et al. 2006). One method for increasing primary stability is modifying the surgical technique for implant placement. Studies have reported that the undersized surgical technique, which uses a final drill diameter smaller than the diameter of the implant, results in a higher primary stability when compared with the press-fit technique (Tabassum, et al. 2009, Tabassum, et al. 2010a).
Other studies have reported a higher implant stability with the bone-condensing techniques rather than the bone-drilling technique (Fanuscu, et al. 2007, Markovic, et al. 2011) and conventional techniques rather than the osteotome technique (Cehreli, et al. 2009, Padmanabhan, et al. 2010). The stress distribution of Ti implants with various thread depths has also been investigated using finite element analyses(FEA) to identify the most effective thread depth for stress distribution (Ao, et al. 2010, Chun, et al. 2002, Kong, et al. 2008).
The thread depth also provides a higher contribution than the thread width for stress distribution to the bone (Kong, et al. 2008).
Ti implants with a deeper thread depth provide a higher surface area, which is advantageous for increasing stability in areas of poor quality bone (Abuhussein, et al. 2010). Ti implants with deeper thread depths also facilitate an increased load and mechanical interlocking with poor quality bone.
Another method increasing the primary stability is to change the implant design, such as the shape of the implant body and thread, length, and diameter. Various thread designs for taper implants and other dental implant designs have already been reported to effect the primary stability. Taper implants also show a higher primary stability than cylindrical implants (Kim, et al. 2009, Sakoh, et al. 2006, Wilmes, et al. 2008).
Meanwhile, dental implants with a long length or wide diameter show a significantly increased insertion torque (Kim,et al. 2009, Wilmes, et al. 2008). Plus, dental implants without self-tapping blades have a higher primary stability than implants with self-tapping blades (Kim et al. 2011).
made totally different ISQ pattern!!
sustauned implant stability
Thanks to MegaGen’s unique KnifeThread® and super self-tapping design, better initial stability can be attained in any compromised bone situation.
The design enables bone condensing, gentle ridge expansion, maximized compressive force resistance, and minimized shear force production.
What is the ideal surface for dental implants?
Since the osseointegration concept was introduced by Branemark in the 1960s, primarily osseointegrated implants have been recommended in the dental treatment area and high implant success rates have been reported. A prerequisite for successful osseointegration is initial stability after implant placement, which depends on the surface characteristics and morphology of the implant and bone density of the surgical site.
Lately, various surface treatment methods have been studied to facilitate rapid and strong osseointegration. According to the surface roughness and topography, the surface chemistry plays an important role for osseointegration. Titanium (Ti) and Ti alloys are bioinert surfaces and are not able to directly bond with bone. One method for increasing surface reactivity is to coat the Ti surface with nanostructured calcium. Many in vitro and in vivo studies have already reported the effectiveness of nanostructured calcium coating.
For example, in vitro studies have reported that surface modification using calcium ions increased the growth of osteoblastic cells and promoted the precipitation of apatite on Ti surfaces in simulated body fluid. Plus, the effects of cell adhesion to calcium-incorporated Ti surfaces were reduced in human alveolar bone cells and MG-63 cells, and increased in human osteoblasts. Several in vivo studies have reported that incorporating calcium into Ti implants by hydrothermal treatment stimulated osseointegration by increasing the BIC % when compared with untreated Ti implants in rabbit models.
Various surface treatments