Dentaltown September 2021 - 58
Fig. 6a
Fig. 7
Fig. 6b
Fig. 6c
Fig. 6: Gingivectomy with a diode on a pulsed setting. (6a: Preoperative view. 6b: Immediate postoperative view.
6c: 21-day postoperative view.)
Fig. 7: External bevel gingivectomy created with an Erbium all-tissue laser with a chromium sensitized yttrium
scandium gallium garnet (Er,Cr:YSGG) crystal. Note precision and hemostasis.
traditional manual blades because they create hemostasis: Lasers seal lymphatics and capillaries.
Initial wound healing can be delayed, particularly when compared with blades; however, laser
healing can decrease immediate fi broblast regeneration, resulting in less wound contraction and
less scar production.
As compared with electrosurgery, most laser wavelengths have a signifi cant decrease in the zone
of necrosis. With diode and Nd:YAG lasers (those with neodymium-doped yttrium aluminum
garnet crystals), the zone for those wavelengths is 500 µm. Erbium and CO2
lasers are 5-40 µm
because of high water absorption, and require less power for removing tissue.
Each laser wavelength has its advantages and disadvantages for excisional procedures, as
outlined here.
Diode and Nd:YAG lasers
Advantage: Inexpensive, portable, user-friendly and excellent for hemostasis.
Disadvantage: Slow and can create adverse thermal results if used with incorrect settings (Fig. 5,
p. 56). Must be cautious around bone, tooth roots and endosseous implants.
Preferred settings should be pulsed and not continuous (Fig. 6a-c). Continuous does not rely on
thermal relaxation of the heat being dissipated in the tissue and thus creates injury.
CO2
lasers
Advantages: Fast, great for large areas for excision as biopsy with some hemostasis. Acceptable for
most dental surfaces, including implants.
Disadvantage: Costlier than diodes. Larger physical footprint. Some hemostatic properties.
Erbium lasers
Advantages: Fast, minimal thermal activity because tissue interaction is with photoacoustics.
Excisions are very precise, especially for aesthetic crown lengthening (Fig. 7). Has the advantage
of also being able to remove bone (establish biologic width) and tooth structure (caries control,
58 SEPTEMBER 2021 // dentaltown.com
http://www.dentaltown.com
Dentaltown September 2021
Table of Contents for the Digital Edition of Dentaltown September 2021
Table of Contents
Howard Speaks: Dentistry is a Numbers Game
Professional Courtesy: Joyful Dentistry
Continuing Education Update
Industry News
New Products
Townie Poll: Lasers
Show Your Work: Warm Up To Something New by Dr. Ron Kaminer
Message Board: Oral Pathology
Message Board: Endodontic Healing
Industry Insights: Ivoclar Vivadent
Office Visit: Dr. Grant Olson
Dueling Lasers by Dr. Samuel B. Low
Rolling Back 'The Cloud' by Andrew Malcolmson
Ad Index
Keep Your Story Straight by Paul Edwards
Play Your Cards Right by Dr. Jason Annan
Staffing Up by Jay Geier
Dentally Incorrect
Dentaltown September 2021 - EdgeEndo_CT
Dentaltown September 2021 - Cover1
Dentaltown September 2021 - Cover2
Dentaltown September 2021 - 1
Dentaltown September 2021 - 2
Dentaltown September 2021 - 3
Dentaltown September 2021 - Table of Contents
Dentaltown September 2021 - 5
Dentaltown September 2021 - 6
Dentaltown September 2021 - 7
Dentaltown September 2021 - 8
Dentaltown September 2021 - 9
Dentaltown September 2021 - Howard Speaks: Dentistry is a Numbers Game
Dentaltown September 2021 - 11
Dentaltown September 2021 - Professional Courtesy: Joyful Dentistry
Dentaltown September 2021 - 13
Dentaltown September 2021 - Continuing Education Update
Dentaltown September 2021 - 15
Dentaltown September 2021 - Industry News
Dentaltown September 2021 - 17
Dentaltown September 2021 - New Products
Dentaltown September 2021 - 19
Dentaltown September 2021 - Townie Poll: Lasers
Dentaltown September 2021 - 21
Dentaltown September 2021 - Show Your Work: Warm Up To Something New by Dr. Ron Kaminer
Dentaltown September 2021 - 23
Dentaltown September 2021 - 24
Dentaltown September 2021 - 25
Dentaltown September 2021 - Message Board: Oral Pathology
Dentaltown September 2021 - 27
Dentaltown September 2021 - 28
Dentaltown September 2021 - 29
Dentaltown September 2021 - 30
Dentaltown September 2021 - 31
Dentaltown September 2021 - 32
Dentaltown September 2021 - 33
Dentaltown September 2021 - Message Board: Endodontic Healing
Dentaltown September 2021 - 35
Dentaltown September 2021 - 36
Dentaltown September 2021 - 37
Dentaltown September 2021 - Industry Insights: Ivoclar Vivadent
Dentaltown September 2021 - 39
Dentaltown September 2021 - Office Visit: Dr. Grant Olson
Dentaltown September 2021 - 41
Dentaltown September 2021 - 42
Dentaltown September 2021 - 43
Dentaltown September 2021 - 44
Dentaltown September 2021 - 45
Dentaltown September 2021 - 46
Dentaltown September 2021 - 47
Dentaltown September 2021 - 48
Dentaltown September 2021 - 49
Dentaltown September 2021 - 50
Dentaltown September 2021 - 51
Dentaltown September 2021 - 52
Dentaltown September 2021 - 53
Dentaltown September 2021 - Dueling Lasers by Dr. Samuel B. Low
Dentaltown September 2021 - 55
Dentaltown September 2021 - 56
Dentaltown September 2021 - 57
Dentaltown September 2021 - 58
Dentaltown September 2021 - 59
Dentaltown September 2021 - Rolling Back 'The Cloud' by Andrew Malcolmson
Dentaltown September 2021 - 61
Dentaltown September 2021 - 62
Dentaltown September 2021 - 63
Dentaltown September 2021 - 64
Dentaltown September 2021 - Ad Index
Dentaltown September 2021 - Keep Your Story Straight by Paul Edwards
Dentaltown September 2021 - 67
Dentaltown September 2021 - 68
Dentaltown September 2021 - 69
Dentaltown September 2021 - 70
Dentaltown September 2021 - 71
Dentaltown September 2021 - Play Your Cards Right by Dr. Jason Annan
Dentaltown September 2021 - 73
Dentaltown September 2021 - 74
Dentaltown September 2021 - 75
Dentaltown September 2021 - Staffing Up by Jay Geier
Dentaltown September 2021 - 77
Dentaltown September 2021 - 78
Dentaltown September 2021 - 79
Dentaltown September 2021 - Dentally Incorrect
Dentaltown September 2021 - Cover3
Dentaltown September 2021 - Cover4
Dentaltown September 2021 - SI_1
Dentaltown September 2021 - SI_2
Dentaltown September 2021 - Elite_Book
Dentaltown September 2021 - IAOS_Book
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