Journal of Oral Implantology October 2014 - (Page 524)
LETTER TO THE EDITOR
Dear Editor,
I was in error when I stated in the Letter to the
Editor of the JOI Vol 39, Issue 5 (October 2013); that
Drs. Ralph and Harold Roberts invented the blade
form dental implant. Dr. Leonard I. Linkow invented
the blade form dental implant and Drs. Ralph and
Harold Roberts invented the plate form dental
implant. I had several personal conversations with
Drs. Linkow and Roberts through November and
December of 2013. According to Drs. Leonard I.
Linkow and Ralph A. Roberts, the terms blade and
plate form have been interchangeably used in this
field for decades and this is incorrect, because they
are two different types of implants. The blade and
plate form dental implants both utilize horizontal
bone and are used in bone that is narrow
buccolingually and of moderate occlusoapical
height. However, they have distinctly different
insertion protocols. The brevity of this communication precludes intimate details as per the preperation of the osteotomies and insertion techniques,
indications and contraindications for the two. The
blade form osteotomy is prepared with burs and or
saws and is at least one and one half times the
length of the implant. The blade form is tapered
occlusoapically, penetrates the bone like a wedge
and is well suited for thin atrophic ridges. The blade
form depending upon design and treatment plan,
utilize a one or two stage protocol. The plate form is
thicker in width and not tapered in the occlusoapical direction thus, greater width of bone is
required, but not the same as for root forms. The
plate form osteotomy is prepared by burs, osteotomes and templates, thus the osteotomy for the
plate form is of precise shape and size. The plate
form has a greater load bearing area and requires
the use of a single stage protocol. Both blade and
plate form are inserted by way of mallet and seating
instrumentation. Dr. Leonard I. Linkow, in 1963,
realized the need for utilizing horizontal bone in
atrophic ridges and conceived the thin blade
implant, after noticing issues with dehiscence with
DOI: 10.5163/AAID-JOI-D-14-00015
524
Vol. XL /No. Five / 2014
the flapless approach with the Vent Plant (root
form) implant and Scialom's tantalum pins. Dr.
Linkow applied for his first blade patent on August
17, 1965 and the patent (3499,222) was granted on
March 10, 1970. He applied for a patent (3,465.441)
on the Blade Vent implant on March 20, 1968 that
was granted on September 9, 1969. Ralph and
Harold Roberts also realized the need to use
horizontal bone in 1964. Dr. Harold Roberts showed
Dr. Leonard Linkow his plate form prototype in 1965
and likewise in the exact same meeting, Dr. Linkow
presented to Dr. Harold Roberts patterns of his
Blade Vent implant, which were already in production and went on the market that very same week.
These developments were almost concomitant! Drs.
Harold and Ralph Roberts only placed a small
number of the above mentioned prototypes but
subsequently invented and patented the Ramus
Frame implant. Dr. Harold Roberts invented and
patented the Ramus Blade implant and Dr. Ralph
Roberts invented and patented the STR implant and
has performed thousands of implant cases. Dr.
Leonard I. Linkow has performed thousands of
dental implant cases, produced voluminous publications, and dental implant developments, such as
the internal hexed platform, Blade Vent implants
and its numerous derivations, hallow basket root
form, endosseous implants used for orthodontic
anchorage and open reduction of maxillofacial
fractures, mandibular tripodial subperiosteal implant and the repositioning of the inferior alveolar
nerve. Dr. Linkow, virtually singlehandedly spread
the word about dental implants around the world.
Drs. Linkow and Roberts are living legends of the
marvelous academy and oral implantology at large.
Both are still actively educating dentist worldwide
about the art and science of oral implantology and
creating dental implant innovations.
E. Richard Hughes, DDS
Sterling, Va.
Table of Contents for the Digital Edition of Journal of Oral Implantology October 2014
New AAIP Affiliates Increase JOI Readership
Letter to the Editor
Bone Response From a Dynamic Stimulus on a One-Piece and Multi-Piece Implant Abutment and Crown by Finite Element Analysis
Effect of Platelet-Rich Plasma on the Healing of Mandibular Defects Treated With Fresh Frozen Bone Allograft: A Radiographic Study in Dogs
Efficacy of Growth Factor in Promoting Early Osseointegration
Assessment of Candida Species Colonization and Denture-Related Stomatitis in Bar- and Locator-Retained Overdentures
A Simple Solution for Vector Control in Vertical Alveolar Distraction Osteogenesis
Maxillary Ridge Augmentation With Custom-Made CAD/CAM Scaffolds. A 1-Year Prospective Study on 10 Patients
A Retrospective 3- to 5-Year Study of the Reconstruction of Oral Function Using Implant- Supported Prostheses in Patients With Hypohidrotic Ectodermal Dysplasia
Effects of a New Implant Abutment Design on Peri-Implant Soft Tissues
Repair Technique for Fractured Implant-Supported Metal-Ceramic Restorations: A Clinical Report
Full-Mouth Rehabilitation for a Patient With Dentinogenesis Imperfecta: A Clinical Report
New Method to Increase Inter-alveolar Height With Preservation of Crestal Cortical Bone for Implant Treatment
Implant Placement With a Guided Surgery System Based on Stress Analyses Utilizing the Bone Density: A Clinical Case Report
A Novel Technique for Osteotome Internal Sinus Lifts With Simultaneous Placement of Tapered Implants to Improve Primary Stability
Maxillary Sinus Augmentation and Implant Placement Using Venous Blood Without Graft Material: A Case Letter
Modification of Maxillary Sinus Floor With Orthodontic Treatment and Implant Therapy: A Case Letter
A Surgical Guide for Optimal Placement and Immediate Restoration of Implant
Osseointegrated Dental Implants in Growing Children: A Literature Review
Journal of Oral Implantology October 2014
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