The Hiossen CAS-KIT

Product Review by Dr. David Chong

There are many kinds of devices available to help dentists place implants near the sinus in the absence of adequate vertical bone height, but none of them seemed to function adequately for me until I came across Hiossen’s CAS-KIT. Since I was introduced to it 18 months ago, I have done about 100 augmentations into which I have placed more than 127 implants.

I have been using it regularly in patients whose maxillary posterior bony ridge has enough bucco-lingual width but where the sub-antral height is insufficient for placement of conventional implants. I use this kit when bone remaining between the maxillary sinus and the crest of the alveolar ridge is approximately 5 mm. When less than that, I defer to a different Hiossen device — the Lateral Approach Sinus Kit or LAS-KIT.

In my practice, results of using the CAS-KIT have been very positive. After instructions from the company on when and how to use it, I was soon using it on a regular basis to facilitate the successful placement of even more implants in my practice.

What I like most is its predictability — how I can use the “stopper” system to drill up to and then through the bony wall of the sinus without perforation of the membrane. Rounded drills create a “button of bone” that gently elevates a portion of the membrane. I have found that drill speed (rpm) is critical. After this elevation, water pressure is applied, allowing the membrane to “balloon out” and create just the right amount of space needed for the addition of bone graft and then implant placement.

A specific amount of bone graft material (no guess-work) is placed into to space that was developed under the sinus and then the bone is dispersed laterally and evenly in a way that will completely surround the subsequently placed implant.

I have used several other systems in the past but from my experience, this one seems to be the most precise and complete to safely accomplish the desired outcome. Other devices have some of CAS-KIT’s features but I have not found any that combine such a set of specific instruments along with detailed protocol to take the stress and worry out of what would otherwise be a troublesome procedure. I have been very pleased with what we have been able to do with it in my office and would certainly recommend it to others.

Dr. David Chong maintains a general practice emphasizing implants and sinus grafts in Flushing, N.Y. He complete a two-year surgical and prosthetic implantology residency program at New York University is now a clinical instructor and advisor in the Advanced Dental Implant Training Program for Hiossen. He is also a consultant for the Sate Board of Dentistry in New Jersey. Chong is a Fellow of the International Congress of Oral Implantology and an active member of the Academy of Osseointegration.