Yes, the DioDent is a 810 diode from HOYA ConBio used with an activated fiber for contact ablation and hemostasis. The SmilePro 980 nm diode(formerly Ceralas) from Biolitec is supposedly used in a non-contact mode for “optical hemostasis” and ablation of soft tissues. From Biolitec:

The 980 nm Wavelength

A major benefit of the 980 nm lasers’ wavelength is the ability to cut and coagulate optically – not via a ‘hot tip.’ Because absorption in hemoglobin and water is optimal at the 980 nm wavelength – as identified by physics and photobiology – these lasers’ fiber tips do not require conditioning. As a result, laser light cuts and coagulates with these lasers – not a “hot tip.”

Therefore, many lasers use conductive heat via a ‘hot tip’ to prevent bleeding while the 980 nm lasers coagulate optically, providing hemostasis that is much more durable, solid, and beneficial for patients. Also, because laser light cuts the tissue, when ablating tissue, the 980 nm lasers maintain a controlled depth of penetration and essentially eliminate collateral tissue damage. Without charring tissue, biolitec’s 980 nm lasers minimizes post-operative swelling and discomfort.

Unlike other wavelengths, the 980 nm wavelength is neither absorbed too much nor too little in water and hemoglobin – enabling precise, char-free soft tissue ablation and hemostasis.

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So Vince, I’m not exactly sure what laser you are using?? Even if I did, wouldn’t be much help as I just got my 810 diode but I’ll keep your question in mind as I learn with you. “Low crest” means greater “biologic width”, right? With my radiosurge unit, recession always seemed to depend on whether the facial attached gingiva was thick and fibrous vs. thin and friable.

Al

Thanks Andew,

I know the principals at Biolitec well, and have for over 12 years.  I like them ALL a lot.

However, check the ad inconsistecy:

“The 980 nm Wavelength

A major benefit of the 980 nm lasers’ wavelength is the ability to cut (means vaporize) and coagulate (defined as thermal necrosis) optically – not via a ‘hot tip.’  Because absorption in hemoglobin and water is optimal at the 980 nm wavelength – as identified by physics and photobiology – these lasers’ fiber tips do not require conditioning.  As a result, laser light cuts and coagulates with these lasers – not a “hot tip.” “

Show me the “water absorption” physics or “photobiology” data……What data I have seen and experiements I have done shows NO absorbtion in water at 980nm.

“Therefore, many lasers use conductive heat via a ‘hot tip’ to prevent bleeding while the 980 nm lasers coagulate optically, providing hemostasis that is much more durable, solid, and beneficial for patients.  Also, because laser light cuts the tissue, when ablating tissue, the 980 nm lasers maintain a controlled depth of penetration and essentially eliminate collateral tissue damage.  Without charring tissue, biolitec’s 980 nm lasers minimizes post-operative swelling and discomfort.

Unlike other wavelengths, the 980 nm wavelength is neither absorbed too much nor too little in water and hemoglobin – enabling precise, char-free soft tissue ablation and hemostasis. “

What does THAT mean?  Does that mean 980 is NOT so highly “optically” absorbed in Hemoglonin and water as previously claimed?

These sort of claims are the soft tissue equivalent of Hydrokinetics (HK), which I don’t buy in to.  It detracts from the benefits and actual differences of this wavelength vs 810nm…..and stretches the credibility of the proponents and the company.  Just my humble opinion.

For the record:  pulsed Nd:YAG 1064 nm (84 nm difference from 980) has NO absorption in water–so the claims for near-infrared absorbtion in water belong only to Biolitec, as I know no manufacturer of 810nm diodes makes a “optical” water absorption claim.

Having said that, I like the Biolitec device quite a bit, and think it is one of the best diodes, if not THE best Continuous Wave DIODE device AND wavelength.  

Bob

Hi everyone!

Unfortunately I do not have much to add. I have not heard the term high /low crest when describing biologic width. I also have had no experience with the diode lasers although I am interested to try one.

I agree, as you all have observed that thick periodontiums show minimal gingival recession while thin periodontiums can be very fragile.

From a wound healing standpoint I would recommend waiting 6-8 weeks for final impressions in the esthetic areas. I know doctors that recommend waiting 6 months but that is after full flap procedures with osseous recontouring.

I have seen many posts about impressions being taken on the same visit as troughing and laser gingivectomy procedures. Rod Kurthy has presented several of these on Dental Town as well.

What has been everyones observations?

Do these cases recede over time?

Andy

Bob,

Why is water absorption an important issue for soft tissue wavelengths? Seems that hemoglobin absorption would be a more important factor.

On another note, it would be great for Al to post his opinion on the strengths and weaknesses of the competing hard tissue systems.

Hi Ken,

I believe the original question was regarding tissue response after laser treatment and if it differs from the conventional methods.

I do a lot of preprosthetic treatment with conventional resective surgery and occasional electrosurge. No experience with the diodes.

By the way, very nice improvement on the case you posted!! Too bad she wouldn’t go for the ridge augmentation.

Talk to you later

Andy

Al:

I guess whatever you are comfortable comparing at this point in time. I realize most of it will be qualitative and not hard numbers and, you are still in the evaluation stage I assume.

Don:

Thanks so much for your two cents on diodes. The discussion on uses for activated vs. non-activated tips was most useful – a list of suggested procedures for each tip mode would be great. If I’ve done some ablating, and got a lot of hemorrhage, would there be a benefit to re-cleaving the fiber so that it would now be “un-initiated” and give me deeper penetration and thus better hemostasis?

From what you said, seems like good ways to dissipate heat with the diode in CW mode would be to move quickly/not stay in one place too long and/or spray a little water on the tissue to cool it down.

Thanks,

Al