Bone damage induced by different cutting instruments: an in vitro study

Romeo, Umberto; Vecchio, Alessandro Del; Palaia, Gaspare; Tenore, Gianluca; Visca, Paolo; Maggiore, Claudia

doi:10.1590/s0103-64402009000200013

Cited by 68 publications

(50 citation statements)

References 17 publications

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“…Ide Y et al reported a lower amount of empty lacunae in the surrounding area when using an ultrasonic surgical instrument compared with use of a rotary cutting instrument 11) . In this report, the difference in bone invasion is thought to be due to the number of rotations of the rotary cutting instrument 19) and an invasion by the Lindemann bur 20,21) .…”

Section: Invasions Of Bone Structure In Early Stages After Making Bonmentioning

confidence: 86%

Comparison of Surface Morphology and Healing in Rat Calvaria Bone Defects between Ultrasonic Surgical Method and Rotary Cutting Method

Matsuda

Sasaki

Takanashi

et al. 2015

J. Hard Tissue Biology.

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The aim of this study was to investigate the influence of ultrasonic surgical method (piezoelectric surgery) on invasions of bone structure in early stages and the subsequent healing process of bone defects of rat calvaria as compared with that of rotary cutting using an appropriate rotation speed. Thirteen-week-old male Sprague-Dawley rats were used in this study. Bone defects were prepared in rat calvaria using either an ultrasonic surgical instrument with an ultrasonic insert tip (Ui) or a handpiece with a round bur (Rb) as a rotary cutting instrument (control). Morphological evaluations of the cutting surfaces in the bone defects were assessed by scanning electron microscope (SEM) and confocal laser microscope (CLM) observation. The degree of invasions of the bone structure in the early stages after bone defects were made was assessed by the ratio of empty osteocyte lacunae relative to the total number of osteocytes. The process of bone healing was analyzed by histological observation, immunohistochemical staining with proliferating cell nuclear antigen (PCNA) and osteocalcin (OC), and ratio of PCNA-positive cells. Many fine, parallel streaky cutting traces were observed in the Ui groove surfaces, whereas the Rb groove surfaces were flat and no parallel cutting traces were observed. The arithmetic average roughness of the Ui group (10.06 ± 1.96 µm) was significantly higher than that of the Rb group (2.52 ± 0.16 µm) (p < 0.05). During the entire observation period, no differences in histological observation and immunohistochemical staining were observed between the Ui and Rb groups. No significant differences were recognized in the ratio of empty lacunae and PCNA-positive cells between the Ui and Rb groups. In the present study, there were no appreciable differences in the invasions of bone structure in the early stages and the subsequent healing process of the bone defects of rat calvaria between ultrasonic surgical method and rotary cutting method.

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Section: Invasions Of Bone Structure In Early Stages After Making Bonmentioning

confidence: 86%

Comparison of Surface Morphology and Healing in Rat Calvaria Bone Defects between Ultrasonic Surgical Method and Rotary Cutting Method

Matsuda

Sasaki

Takanashi

et al. 2015

J. Hard Tissue Biology.

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“…In previous reports, slowspeed drills showed signs of thermal damage and bone fragments. 23 Piezosurgery was claimed as ideal to perform osteotomies in thin and fragile bones. The ultrasound appliance is precise and easily handled, and the microvibrations allow a selective cut of only mineralized structures, thereby creating minimal damage to adjacent tissue.…”

Section: Discussionmentioning

confidence: 99%

A pilot clinical study of Class III surgical patients facilitated by improved accelerated osteogenic orthodontic treatments

Jiang

et al. 2015

The Angle Orthodontist

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Objective: To evaluate if the improved accelerated osteogenic orthodontics (IAOO) procedure could speed Class III surgical patients' preoperative orthodontic treatment duration and, if yes, to what extent. This study was also designed to determine whether or not an IAOO procedure affects the tooth-moving pattern during extraction space closure. Materials and Methods: The samples in this study consisted of 24 Class III surgical patients. Twelve skeletal Class III surgery patients served as an experimental group (group 1) and the others as a control group (group 2). Before treatment, the maxillary first premolars were removed. For group 1, after the maxillary dental arch was aligned and leveled (T2), IAOO procedures were performed in the maxillary alveolar bone. Except for this IAOO procedure in group 1, all 24 patients experienced similar combined orthodontic and orthognathic treatment. Study casts of the maxillary dentitions were made before orthodontic treatment (T1) and after extraction space closure (T3). All of the casts were laser scanned, and the amount of movement of the maxillary central incisor, canine, and first molar, as well as arch widths, were digitally measured and analyzed by using the three-dimensional model superimposition method. Results: The time durations T3-T2 were significantly reduced in group 1 by 8.65 6 2.67 months and for T3-T1 were reduced by 6.39 6 2.00 months (P , .001). Meanwhile, the tooth movement rates were all higher in group 1 (P , .05). There were no significant differences in the amount of teeth movement in the sagittal, vertical, and transverse dimensions between the two groups (P . .05). Conclusion: The IAOO can reduce the surgical orthodontic treatment time for the skeletal Class III surgical patient by more than half a year on average. The IAOO procedures do not save anchorage. (Angle Orthod. 2015;85:616-624.)

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“…Considering superior capability of Er:YAG laser, the technique was compared with various other hybrid as well as conventional techniques [30,31]. Comparing with pizoelectric cutter, more bleeding was observed in case of Er:YAG laser cut in a minipig bone ( Fig.…”

Section: Thermal Interactionsmentioning

confidence: 99%

“…3.19 [31]). The Er:YAG technique was also compared with high and low speed diamond coated tools as well as pizo tools in a cutting operation of pig cadaver bone [30]. Sharpness and depth of the cuts achieved by Er:YAG laser were much higher than the other techniques.…”

Section: Thermal Interactionsmentioning

confidence: 99%

Non-conventional and Hybrid Methods of Bone Machining

Dahotre

Joshi

2016

Machining of Bone and Hard Tissues

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Having explored the basics of important fundamental contact (mechanical) and noncontact (thermal) operations involved in machining of the bones, the discussion will proceed towards some of the non-conventional techniques. These techniques have evolved as a result of research works on interaction of bones with various energy sources such as photon/electron beam and mechanical vibrations. Hybrids of fundamentals operations of machining have also been taken into account. Laser, microwave, and ion-beam based methods have been discussed under beam based techniques. Ultrasonic machining which has been extensively explored for bone application has been dealt in a separate section. Pneumatic and hydraulic machining have been taken into account under the section on hybrid machining. These nonconventional/hybrid techniques are not as popular as conventional ones but hold a huge potential for the future. High Energy Beam Based TechniquesThe high energy beam based methods employ some sort of radiation as the means of energy source for removal of the bone material. These techniques have mostly been employed previously in case of the structural materials. Unlike conventional mechanical contact methods employing physical tools which result in generation of heat as the secondary effect, beam based techniques employ heat as the primary means of tooling. The heat is generated by means of various electromagnetic waves within the electromagnetic spectrum such as ultraviolet, microwave, and infrared with various combinations for ranges of energy and wavelength ( Fig. 3.1). As the combinations dictate the extent and mode of interaction of the energy source with the workpiece, any machining operation can be carried out with careful process control. Most common methods explored in this category include laser, ion-beam, and microwave machining which are discussed in detail in the following subsections. Laser MachiningLasers (Light Amplification by Stimulated Emission of Radiation) have been used as a means of machining for quite some time now. Theoretically any wavelength within the electromagnetic spectrum can be made into a laser source. Principally, a lasing medium is excited using a energy source such as inert gas flash lamp. The input of energy (Fig. 3.2a) transfers the electrons within the atoms of the medium to higher energy state, technically termed as population inversion. On the other hand, the random absorption of energy gives rise to spontaneous emission (Fig. 3.2b). In case of population inversion, these electrons jump to lower energy state at the same time emitting photons of the same energy corresponding to difference between ground and excited state (Fig. 3.2c). A set of two mirrors, some times called resonators, one totally and the other partially reflecting, generates the chain reaction giving rise to highly concentrated beam coming out of the partially reflecting mirror (Fig. 3.3). This beam is monochromatic, coherent, and highly collimated in nature and can be employed for various applications depending on the wavele...

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Bone damage induced by different cutting instruments: an in vitro study

Cited by 68 publications

References 17 publications

Comparison of Surface Morphology and Healing in Rat Calvaria Bone Defects between Ultrasonic Surgical Method and Rotary Cutting Method

Comparison of Surface Morphology and Healing in Rat Calvaria Bone Defects between Ultrasonic Surgical Method and Rotary Cutting Method

A pilot clinical study of Class III surgical patients facilitated by improved accelerated osteogenic orthodontic treatments

Non-conventional and Hybrid Methods of Bone Machining

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