Technology
Using CBCT for excellence in patient care
Dr David Nelson explains how 3D scanning technology has improved his working practice
C
ranmore Dental P ractice in Belfast is one of the latest prac- tices in Northern
Ireland to install a 3D Cone Beam System (CBCT). Dr David Nelson, the clinical
director at Cranmore, launched the practice in 2011 and since then has directed its growth through considered investment in technology. “At Cranmore,” says David,
“our key focus is that we deliver excellence in dentistry to our patients.” David was the first dentist
in Northern Ireland to obtain a masters degree in dental implantology. His commitment to education is demonstrated in his role as an undergraduate tutor at Queens University, Belfast, as well as establishing Cranmore as the official Irish training facility for the University of Central Lancashire post- graduate masters degree in implant dentistry. He is also a fellow of the International Team for Implantology (ITI). Until the beginning of last
year, when a 3D view was recommended, David had been referring patients for a medical CT scan. However, he had also been researching the advantages that CBCT was bringing to implantology, resulting in his decision to invest in his own on site CS
9000 3D System (CS was previously branded Kodak). David explained: “At Cran-
more, it is our protocol to use a CT scan for sinus graft proce- dures. Previously, we would send the patient for a hospital spiral CT scan. “However, we now carry
these out in-house on our own CBCT scanner. This is more convenient and time efficient for the patient, combined with quicker diagnosis and commencement of treatment. Not only is the imaging excep- tionally clear, but the dose to the patient is significantly reduced compared to the spiral CT scan. “This particular case
(pictured) shows how impor- tant it is to have a CBCT scan available rather than to only have a 2D OPT. On the pre-op OPT (pathology and decay treated before more complex treatment commenced) from the initial assessment, we can see that sinus augmentation will be required on both sides with a lateral approach on the left and a crestal approach on the right (Fig 2a). “What the OPT does not
show is that there is pathology in both the left and right maxil- lary sinus (Fig 2b). The left sinus appears to have a reten- tion cyst and the right sinus is more occluded. This pathology
Continued » Fig 1
Dr David Nelson positions a patient for a 3D scan on the CS 9000 3D System
Fig 2a
Fig 2b
Fig 2a and 2b – The 3D volume clearly shows a spherical mass in the left sinus and fully occluded right sinus which shows as being more opaque which is not visible in the corresponding 2D OPG.
Ireland’s Dental magazine 27
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