Rely On Us - November/December 2017 - 18

ADDITIONAL HUMAN STUDIES

LONG TERM CASE STUDIES
ADDITIONAL HUMAN STUDIES
USING A LASER-LOK IMPLANT
Three Year Prospective, Controlled
Three Year Prospective, Controlled

Clinical evaluation of laser microtexturing for soft tissue and bone attachment
to dental implants.
Clinical
evaluation
of laser
microtexturing
GE Pecora,
R Ceccarelli,
M. Bonelli,
H. Alexander,
JL Ricci. for soft tissue and bone attachment
dental Volume
implants.
ImplanttoDentistry.
18(1). February 2009. pp. 57-66.
GE Pecora, R Ceccarelli, M. Bonelli, H. Alexander, JL Ricci.
Crestal Bone
Loss 18(1). February 2009. pp. 57-66.
Implant Dentistry.
Volume
Laser-Lok

Crestal Bone Loss

1.00

0.50

1.50

Laser-Lok
3.00

4.00

2.50

3.50

Sulcus Depth (mm)

2.00

Bone Loss (mm)

2.50
1.50

Sulcus Depth

3.50

Control

Sulcus Depth (mm)

Laser-Lok

2.00

2.00
1.50
1.00

1.00

5
0.50

0.50

ADDITIONAL HUMAN STUDIES

0.00

Months Post-Op

Control

3.00
2.50
2.00
1.50
1.00
5

Months Post-Op

0.50

Crestal bone
0.00 loss, Laser-Lok vs. Control for 37 month follow-up.
1
5 error;
9 p<0.005
13
17 month
21 5. 25
29
Error bars=standard
after
Months Post-Op

INTRODUCTION
Three Year

Control

4.00

2.50

0.00

Sulcus Depth
Laser-Lok

Control

Sulcus0.00
depth, Laser-Lok vs. Control for 37 month follow-up.
1
5
9 p<0.005
13
17 all time
21 periods.
25
29
Error bars=standard
error;
for
Months Post-Op

Crestal bone loss, Laser-Lok vs. Control for 37 month follow-up.
Error bars=standard error; p<0.005 after month 5.

Sulcus depth, Laser-Lok vs. Control for 37 month follow-up.
Error bars=standard error; p<0.005 for all time periods.

Prospective, Controlled

A tapered dental implant (Laser-Lok [LL] surface treatment) with a 2 mm wide collar, that has been laser micromachined in the lower 1.5 mm
to preferentially
accomplish bone and connective tissue attachment while inhibiting epithelial downgrowth, was evaluated in a prospective,
INTRODUCTION
controlled,
multicenter
clinical
trial.(Laser-Lok [LL] surface treatment) with a 2 mm wide collar, that has been laser micromachined in the lower 1.5 mm
A tapered dental
implant

Clinical evaluation of laser microtexturing for soft tissue and bone attachment
to dental implants.
Data are reported at measurement periods from 1 to 37 months postoperative for 20 pairs of implants in 15 patients. The implants are placed
to preferentially accomplish bone and connective tissue attachment while inhibiting epithelial downgrowth, was evaluated in a prospective,

MATERIALS
controlled, multicenter clinical trial.

adjacentMATERIALS
to machined collar GE
control
implants R
of Ceccarelli,
the same design.
are reported
bleeding index, plaque index, probing
Pecora,
M.Measurement
Bonelli, H.values
Alexander,
JLforRicci.
depth, and
crestal
bone
loss.
Data are reported at measurement periods from 1 to 37 months postoperative for 20 pairs of implants in 15 patients. The implants are placed

Implant Dentistry. Volume 18(1). February 2009. pp. 57-66.

Sulcus Depth (mm)

adjacent to machined collar control implants of the same design. Measurement values are reported for bleeding index, plaque index, probing
RESULTS
depth, and crestal bone loss.
No statistical differences are measured for either bleeding
or plaque
index. At all measurement periods there are significant differences
in the
Sulcus
Depth
Crestal
Bone Loss
probing RESULTS
depths and the crestal bone loss differences are significant
after
is 2.30 Control
Laser-Lok
Laser-Lok
Control7 months (P<0.001). At 37 months the mean probing depth
4.00
2.50 is 0.59 mm for LL versus 3.60 and 1.94 mm, respectively, for control implant.
mm andNo
thestatistical
mean crestal
bone loss
Also, are
comparing
results
in the in the
differences
are measured for either bleeding or plaque index. At all measurement periods there
significant
differences
mandible
versus depths
those inand
the the
maxilla
demonstrates
a bigger difference
(control
implant
- LL) in
the mean At
in 37
crestal
bone loss and probing depth
probing
crestal
bone loss differences
are significant
after
7 months
(P<0.001).
3.50months the mean probing depth is 2.30
in the maxilla.
However,
thiscrestal
result
was not
significant.
2.00
mm and
the mean
bone
lossstatistically
is 0.59 mm
for LL versus 3.60 and 1.94 mm, respectively, for control implant. Also, comparing results in the
3.00

Bone Loss (mm)

mandible versus those in the maxilla demonstrates a bigger difference (control implant - LL) in the mean in crestal bone loss and probing depth

DISCUSSION
in the maxilla. However, this result was not statistically significant.
1.50

2.50

The consistent difference in probing depth between LL and control implant demonstrates the formation of a stable soft-tissue seal above the
2.00
crestal bone.
LL limited the crestal bone loss to the 0.59 mm range as opposed to the 1.94 mm crestal bone
loss reported for control implant.
DISCUSSION
1.00
The LL implant
was
found
to
be
comparable
with
the
control
implant
in
safety
endpoints
plaque
index
and
sulcular
index. There
a
1.50
The consistent difference in probing depth between LL and control implant demonstrates the formation
of ableeding
stable soft-tissue
sealisabove
the
nonstatistically
significant
suggestion
that
the
LL
crestal
bone
retention
superiority
is
greater
in
the
maxilla
than
the
mandible.
crestal bone. LL limited the crestal bone loss to the 0.59 mm range as opposed to the 1.94 mm crestal bone loss reported for control implant.
1.00

0.50 to be comparable with the control implant in safety endpoints plaque index and sulcular bleeding index. There is a
The LL implant was found
0.50
nonstatistically
suggestion that the LL crestal bone retention superiority is greater in the maxilla than the mandible.
7 year significant
follow-up
0.00

7 year follow-up

0.00

Months Post-Op

Crestal bone loss, Laser-Lok vs. Control for 37 month follow-up.
Error bars=standard error; p<0.005 after month 5.

Sulcus depth, Laser-Lok vs. Control for 37 month follow-up.
Error bars=standard error; p<0.005 for all time periods.

INTRODUCTION

MATERIALS

Laser-Lok (LL) and non Laser-Lok (C) at
time of placement

Laser-Lok (LL) and non Laser-Lok (C) at
7 years post-op

Laser-Lok (LL) and non Laser-Lok (C) at

Data are reported at measurement
periods from 1 to 37 months postoperative
forpost-op
20 pairs of implants in 15 patients. The implants are placed
time of placement
7 years
adjacent to machined collar control implants of the same
design.
Measurement
values
are reported for bleeding index, plaque index, probing
15
depth, and crestal bone loss.

Conclusion: This case demonstrate the ability of the Laser-Lok microchannel collar design to maintain crestal bone
RESULTS

levels
and soft
tissue esthetics
around
traditional
expectation
of bone loss
below
theare
collar
and todifferences
the
No
statistical
differences
are measured
fordental
either implants.
bleeding orA plaque
index.
At all measurement
periods
there
significant
in the
first
thread
was
not
noted.
The
ability
of
the
Laser-Lok
microchannels
to
maintain
crestal
bone
and
provide
supracrestal
probing depths and the crestal bone loss differences are significant after 7 months (P<0.001). At 37 months the mean probing depth is 2.30
connective
attachment
mayis create
a new
definition
of "normal"
implant
biologic for
width.
mm
and the tissue
mean crestal
bone loss
0.59 mm
for LL
versus 3.60
and 1.94 mm,
respectively,
control implant. Also, comparing results in the
mandible versus those in the maxilla demonstrates a bigger difference (control implant - LL) in the mean in crestal bone loss and probing depth
in the maxilla. However, this result was not statistically significant.

DISCUSSION
18

N O V / D E C

2 0 1 7

w w w.he nry sc he i n.c om.a u

The consistent difference in probing depth between LL and control implant demonstrates the formation of a stable soft-tissue seal above the

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