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Dental Tribune United Kingdom Edition

21Perio TribuneSeptember 10-16, 2012United Kingdom Edition ria associated with periodontal disease, to affect the calculus present, and to affect thermo- labile toxins. The bacteria that are associated with periodon- tal diseases are pigmented and are found in the sulcus, within the root surface and within the epithelial cells. One of the rea- sons for the predictability of this step is in the selection of a fre- erunning pulsed Nd:YAG laser with a wavelength of 1,064 nm and pulsed in a range of seven different microseconds. The shorter 1,064 nm wavelength was selected for its affinity for melanin or dark pigmentation, unlike the longer wavelengths that are highly absorbed in water and would have a shal- low depth of penetration. This ability to increase the depth of penetration of the laser energy with minimal collateral damage is the reason that the diseased epithelium can be selectively removed without damage to the underlying tissue, leaving in- tact rete pegs. The diode lasers are also known for this selec- tive absorption in pigmented tissues, but the free-running, pulsed Nd:YAG lasers differ in their ability to operate at very high peak powers in very short timeframes, which allows the Nd:YAG to have the greater depth of penetration and the lack of collateral damage Step C This step in the LANAP protocol is straightforward; it is just a matter of using the piezo-scal- ers to remove the calculus pre- sent on the root surfaces. The removal of calculus is believed to be easier after the interac- tion of the laser energy with the calculus. The first interac- tion of the laser results in the initial formation of a mini-flap, thereby further assisting in the removal of calculus because of increased visibility and access to the calculus. Step D The next step again utilises the laser. This time the parameters are varied to enhance the abil- ity to form a fibrin clot to close the mini-flap and to disinfect the site again. The formation of the stable fibrin clot is sig- nificant, as it is stable for ap- proximately 14 days. The role of the fibrin clot is to keep the Fig. 4_ Pre-op CBT scan. Fig. 5_Post-op periodontal probing at 15 months. ‘It is just a matter of using the piezo- scalers to remove the calculus present on the root surfaces’ Best ever value cone beam CT Veraviewepocs 3D R100 & F40 Up to three times the image detail of other 3D X-ray systems Revolutionary R100 Reuleaux full arch view Compact, versatile and affordable Extra clarity for implantology, endodontics and oral surgery Focus on the anatomy you need to see Up to six fields of view from 40mm to R100 Reuleaux arch Confidence of high definition, distortion-free radiographs High speed, high quality, low dose image Easy and accurate automatic scout positioning Multi-layer panoramic images Up to three times the image The Dental Imaging Experts G Comprehensive service and support plans G Independent specialists in digital X-ray systems Telephone: 0845 602 4944 Email: info@thedentalimagingcompany.co.uk FREE demonstration call 0845 388 3380 or email info@morita-uk.com NEW See the difference www.thedentalimagingcompany.co.uk Conebeam A4 advert ACTUAL.indd 1 14/06/2012 15:06 page 22DTà