scholarly journals Peri-Implant Bone Damage Procured by Piezoelectric and Conventional Implant Site Preparation: An In Vitro Comparison

2020 ◽  
Vol 10 (24) ◽  
pp. 8909
Author(s):  
Alberto Rebaudi ◽  
Federico Rebaudi ◽  
Fabrizio Barberis ◽  
Gilberto Sammartino ◽  
Gaetano Marenzi
Keyword(s):  
Cortical Bone ◽  
Cancellous Bone ◽  
Site Preparation ◽  
Bone Surface ◽  
Bone Trauma ◽  
Bone Damage ◽  
Fresh Bone ◽  
Implant Site Preparation ◽  
Preparation Techniques

Background: The conventional drill technique is the most commonly used for the implant site preparation of the desired diameter and length. Ultrasonic implant site preparation (UISP) can also be used to perform an implant site preparation of the desired dimensions. Methods: Implant sites were prepared in fresh bone ribs with two different implant site preparation techniques: implant surgical drills and piezoelectric tips. Samples were analyzed with scanning electron microscopy (SEM) for evaluating the peri-implant bone damage. Result: In the surgical drills group, the cortical bone surface showed several cracks and the bone vascular canals were hidden by a dense smear layer. Cancellous bone showed large irregularities and trabecular fractures. The piezoelectric group showed a clean and smooth cortical bone surface with opened bone vascular canals; the cancellous bone presented a regular morphology, and the trabecular spaces, clearly visible, were free of debris. Conclusions: Ultrasonic implant site preparation showed cleaner bone surfaces and lower bone trauma compared with the preparation using implant surgical drills.

Primary Stability of Short Implants Inserted Using Piezoelectric or Drilling Systems: An In Vitro Comparison

2019 ◽  
Vol 45 (4) ◽  
pp. 259-266
Author(s):  
Claudio Stacchi ◽  
Matteo De Biasi ◽  
Lucio Torelli ◽  
Massimo Robiony ◽  
Roberto Di Lenarda ◽  
...  
Keyword(s):  
Cancellous Bone ◽  
Operative Time ◽  
Primary Stability ◽  
Site Preparation ◽  
Preparation Technique ◽  
Implant Stability ◽  
Implant Stability Quotient ◽  
Custom Made ◽  
Implant Site Preparation

The primary objective of the present in vitro study was to evaluate the influence of implant site preparation technique (drills vs ultrasonic instrumentation) on the primary stability of short dental implants with two different designs inserted in simulated low-quality cancellous bone. Eighty implant sites were prepared in custom-made solid rigid polyurethane blocks with two different low cancellous bone densities (5 or 15 pounds per cubic foot [PCF]), equally distributed between piezoelectric (Surgysonic Moto, Esacrom, Italy) and conventional drilling techniques. Two short implant systems (Prama and Syra, Sweden & Martina) were tested by inserting 40 fixtures of each system (both 6.0 mm length and 5.0 mm diameter), divided in the four subgroups (drills/5 PCF density; drills/15 PCF density; piezo/5 PCF density; piezo/15 PCF density). Insertion torque (Ncm), implant stability quotient values, removal torque (Ncm), and surgical time were recorded. Data were analyzed by 3-way ANOVA and Scheffé's test (α = 0.05). With slight variations among the considered dependent variables, overall high primary implant stability was observed across all subgroups. Piezoelectric instrumentation allowed for comparable or slightly superior primary stability in comparison with the drilling procedures in both implant systems. The Prama implants group showed the highest mean reverse torque and Syra implants the highest implant stability quotient values. Piezoelectric implant site preparation took prolonged operative time compared to conventional preparation with drills; among the drilling procedures, Syra system required fewer surgical steps and shorter operative time.

Temperature Changes in Cortical Bone after Implant Site Preparation Using a Single Bur versus Multiple Drilling Steps: An In Vitro Investigation

2013 ◽  
Vol 17 (4) ◽  
pp. 700-707 ◽  
Author(s):  
Sergio Alexandre Gehrke ◽  
Raphaél Bettach ◽  
Silvio Taschieri ◽  
Gilles Boukhris ◽  
Stefano Corbella ◽  
...  
Keyword(s):  
Cortical Bone ◽  
Site Preparation ◽  
Temperature Changes ◽  
In Vitro Investigation ◽  
Implant Site Preparation

scholarly journals Temperature Values Variability in Piezoelectric Implant Site Preparation: Differences between Cortical and Corticocancellous Bovine Bone

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Luca Lamazza ◽  
Girolamo Garreffa ◽  
Domenica Laurito ◽  
Marco Lollobrigida ◽  
Luigi Palmieri ◽  
...  
Keyword(s):  
Cortical Bone ◽  
Site Preparation ◽  
Bovine Bone ◽  
Standardized Protocol ◽  
Different Types ◽  
Group A ◽  
Implant Site Preparation ◽  
The Impact ◽  
Drilling Time

Purpose. Various parameters can influence temperature rise and detection during implant site preparation. The aim of this study is to investigate local temperature values in cortical and corticocancellous bovine bone during early stages of piezoelectric implant site preparation.Materials and Methods. 20 osteotomies were performed using a diamond tip (IM1s, Mectron Medical Technology, Carasco, Italy) on two different types of bovine bone samples, cortical and corticocancellous, respectively. A standardized protocol was designed to provide constant working conditions. Temperatures were measured in real time at a fixed position by a fiber optic thermometer.Results. Significantly higher drilling time (154.90 sec versus 99.00 sec;p<0.0001) and temperatures (39.26°C versus 34.73°C;p=0.043) were observed in the cortical group compared to the corticocancellous group. A remarkable variability of results characterized the corticocancellous blocks as compared to the blocks of pure cortical bone.Conclusion. Bone samples can influence heat generation duringin vitroimplant site preparation. When compared to cortical bone, corticocancellous samples present more variability in temperature values. Even controlling most experimental factors, the impact of bone samples still remains one of the main causes of temperature variability.

scholarly journals Osteopontin Deficiency Induces Parathyroid Hormone Enhancement of Cortical Bone Formation

Endocrinology ◽  
2003 ◽  
Vol 144 (5) ◽  
pp. 2132-2140 ◽  
Author(s):  
Keiichiro Kitahara ◽  
Muneaki Ishijima ◽  
Susan R. Rittling ◽  
Kunikazu Tsuji ◽  
Hisashi Kurosawa ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Formation ◽  
Bone Mass ◽  
Cortical Bone ◽  
Cancellous Bone ◽  
Wild Type ◽  
Mineral Density ◽  
Cortical Bone Mass ◽  
Intermittent Pth

Intermittent PTH treatment increases cancellous bone mass in osteoporosis patients; however, it reveals diverse effects on cortical bone mass. Underlying molecular mechanisms for anabolic PTH actions are largely unknown. Because PTH regulates expression of osteopontin (OPN) in osteoblasts, OPN could be one of the targets of PTH in bone. Therefore, we examined the role of OPN in the PTH actions in bone. Intermittent PTH treatment neither altered whole long-bone bone mineral density nor changed cortical bone mass in wild-type 129 mice, although it enhanced cancellous bone volume as reported previously. In contrast, OPN deficiency induced PTH enhancement of whole-bone bone mineral density as well as cortical bone mass. Strikingly, although PTH suppressed periosteal bone formation rate (BFR) and mineral apposition rate (MAR) in cortical bone in wild type, OPN deficiency induced PTH activation of periosteal BFR and MAR. In cancellous bone, OPN deficiency further enhanced PTH increase in BFR and MAR. Analysis on the cellular bases for these phenomena indicated that OPN deficiency augmented PTH enhancement in the increase in mineralized nodule formation in vitro. OPN deficiency did not alter the levels of PTH enhancement of the excretion of deoxypyridinoline in urine, the osteoclast number in vivo, and tartrate-resistant acid phosphatase-positive cell development in vitro. These observations indicated that OPN deficiency specifically induces PTH activation of periosteal bone formation in the cortical bone envelope.

scholarly journals A Comparative Analysis of the Piezoelectric Ultrasonic Appliance and Trephine Bur for Apical Location: An In Vitro Study

2021 ◽  
Vol 11 (10) ◽  
pp. 1034
Author(s):  
Esther Cáceres Madroño ◽  
Paulina Rodríguez Torres ◽  
Soraya Oussama ◽  
Álvaro Zubizarreta-Macho ◽  
María Bufalá Pérez ◽  
...  
Keyword(s):  
Study Groups ◽  
Experimental Models ◽  
Site Preparation ◽  
T Test ◽  
Entry Point ◽  
Osteotomy Site ◽  
End Point ◽  
Planning Software ◽  
Preparation Techniques

To compare and contrast the accuracy of piezoelectric ultrasonic insert (PUI) and trephine bur (TB) osteotomy site preparation techniques for apical location. (1) Material and methods: A total of 138 osteotomy site preparations were randomly distributed into one of two study groups. Group A: TB technique (n = 69) and B: PUI technique (n = 69). A preoperative cone-beam computed tomography scan and an intraoral scan were performed and uploaded to implant-planning software to plan the virtual osteotomy site preparations for apical location. Subsequently, the osteotomy site preparations were performed in the experimental models with both osteotomy site preparation techniques and a postoperative CBCT scan was performed and uploaded into the implant-planning software and matched with the virtually planned osteotomy site preparations to measure the deviation angle and horizontal deviation as captured at the coronal entry point and apical end-point between osteotomy site preparations using Student’s t-test statistical analysis. (2) Results: The paired t-test found statistically significant differences at the coronal entry-point deviations (p = 0.0104) and apical end-point deviations (p = 0.0104) between the TB and PUI study groups; however, no statistically significant differences were found in the angular deviations (p = 0.309) between the trephine bur and piezoelectric ultrasonic insert study groups. (3) Conclusions: The results showed that the TB is more accurate than the PUI for apical location.

In vitro comparison of dental implant site preparation with ultrasonic system and conventional rotatory system

Oral Surgery ◽  
2019 ◽  
Vol 13 (2) ◽  
pp. 108-116
Author(s):  
A. Lanata‐Flores ◽  
E.H.L. Nascimento ◽  
D.R. Goulart ◽  
F. Haiter‐Neto ◽  
M. Moraes ◽  
...  
Keyword(s):  
Dental Implant ◽  
Site Preparation ◽  
Implant Site Preparation ◽  
In Vitro Comparison

In Vitro Comparison of Time and Accuracy of Implant Placement Using Trephine and Conventional Drilling Techniques Under Dynamic Navigation

2020 ◽  
Author(s):  
Janina Golob Deeb ◽  
Anja Frantar ◽  
George R. Deeb ◽  
Caroline K. Carrico ◽  
Ksenija Rener-Sitar
Keyword(s):  
In Vitro Study ◽  
Site Preparation ◽  
Experimental Conditions ◽  
Implant Placement ◽  
Significant Difference ◽  
Dynamic Navigation ◽  
Drilling Technique ◽  
Implant Site Preparation ◽  
Conventional Drilling

The aim of this randomized in vitro study was to compare the time and accuracy of implant site preparation and implant placement using a trephine drill versus a conventional drilling technique under dynamic navigation. A total of 42 implants were placed in simulation jaw models with the two drilling techniques by two operators with previous experience with dynamic navigation. The timing of each implant placement was recorded, and horizontal, vertical, and angulation discrepancies between the planned and placed implants were compared. There was no significant difference in time or accuracy between the trephine and conventional drilling techniques. Implant site preparation with a single trephine drill using dynamic navigation was as accurate under in vitro experimental conditions as a conventional drilling sequence.

Effects of Bur Wear during Implant Site Preparation: An in Vitro Study

2007 ◽  
Vol 20 (1_suppl) ◽  
pp. 23-26 ◽  
Author(s):  
A. Scarano ◽  
F. Carinci ◽  
A. Quaranta ◽  
D. Di Iorio ◽  
B. Assenza ◽  
...  
Keyword(s):  
In Vitro Study ◽  
Site Preparation ◽  
Vitro Study ◽  
Implant Site Preparation
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