Guest Gallery, Jon P. Bradrick Maxillofacial Surgery

Dave Weikel's Olympus E-10 Page

Guest Gallery
Photographer
Jon P. Bradrick, DDS

In this Guest Gallery

Jon P. Bradrick, DDS
Director and Program Director, Division of Oral and Maxillofacial Surgery Department of Surgery MetroHealth Medical Center 2500 MetroHealth Drive
Cleveland, Ohio 44109
jbradrick@metrohealth.org

I am pleased and privileged to host examples of the work Dr. Jon Bradrick has done with his E-10 in a maxillofacial surgical environment. These examples are primarily intended to illustrate the capabilities of the E-10 to doctors and dental professionals. If you have a problem with photos of invasive procedures, don't go any further.

Dave

Jon writes the following:

Attached are 12 clinical photographs using the Olympus E10. No cropping or editing was done in any pictures, except p8290008bw.jpg, which is p8290008.jpg reduced to a gray scale image. This makes it look more like a real radiograph, and also decreases the file size significantly. Some additional points of how I use the E10 clinically are:

1. I prefer aperture priority, as I like to have control over depth of field. This allows objects in both the front and back of the mouth to be in focus.

2. When I was using traditional 35 mm cameras, the use of a ring flash was always necessary. I am pleasantly surprised that the E10's on board flash adequately illuminates everything I need to photograph.

3. We work under such a large variety of lights. All of our dental operatories and operating rooms have in ceiling fluorescent lights. Patient illumination comes from ceiling mounted spotlights. Some are tungsten, while others seem to be halogen sources. I went through several experiments trying to get the best color temperature in these lighting situations. Most surgeons remove the spotlights before taking a picture, yet the surgical field then became dark (especially in the mouth) and the automatic focus didn't function as well. Manual focus was also difficult without the light. I have found the best combination is to use one touch color balance (setting of "0") in combination with fill in flash set to EV=0. I then leave the surgical spotlights on, and the automatic focus works well. A side benefit from more illumination in the field is tolerance of larger aperture numbers resulting in greater depth of field.

4. Intraoral photography using mirrors is normal.

5. Photography of radiographs. A radiograph is a flat object illuminated by fluorescent transillumination. Traditional photography required a magenta filter to eliminate the green appearance of these pictures. I spent a lot of time trying to set the color temperature of the E10 to get a natural appearing radiograph picture. Of course this doesn't matter, as gray scale correction in any graphics program does this nicely. Example: p8290008.jpg before and p8290008bw.jpg after. Aperture settings should be as low as possible to allow maximum light input. Depth of field is irrelevant as the subject is perfectly flat. The only reason to leave the radiographs in 24-bit color is to allow color annotations (arrows on lines) to be added in a graphics program.

Common attributes of the pictures:
1. All use F5.0 except radiograph (p8290008.jpg) which was F2.4
2. All used aperture priority
3. All are 80 ISO speed
4. All used center weighted average metering mode
5. All used AF focus mode
6. All are one touch white balance, except radiograph (p8290008.jpg) which was 4000K
7. All use EV +/- 0 flash strength bias value
8. All use the MCON-35 adapter
9. No cropping

File:	p8290020.jpg
Description:	Malocclusion secondary to mandibular subcondylar fracture
Special Equipment	Lip retractors
Exposure:	1/125 sec
Fill Flash:	Yes
Focal Length:	36 mm
Lighting:	Halogen operatory light. Florescent background

File:	pc131467.jpg
Description:	Floor of mouth carcinoma in situ
Special Equipment	Occlusal mirror
Exposure:	1/100
Fill Flash:	Yes
Focal Length:	31 mm
Lighting:	Halogen operatory light. Florescent background

File:	pb281409.jpg
Description:	Mandibular lingual alveolar ridge squamous cell carcinoma
Special Equipment	Lingual mirror
Exposure:	1/125
Fill Flash:	Yes
Focal Length:	36 mm
Lighting:	Halogen operatory light. Florescent background

File:	pa031071.jpg
Description:	Buccal mucosa fibroma
Special Equipment	None
Exposure:	1/125
Fill Flash:	Yes
Focal Length:	36 mm
Lighting:	Halogen operatory light. Florescent background

File:	p8290008.jpg
Description:	Coronal CAT scan. Bilateral impacted maxillary canines with odontogenic cysts - conversion to gray scale on the right.
Special Equipment	None
Exposure:	1/60
Fill Flash:	None
Focal Length:	36 mm
Lighting:	Florescent translumination

File:	pc131474.jpg
Description:	Dental root form implant replacing maxillary lateral incisor
Special Equipment	None
Exposure:	1/160
Fill Flash:	Yes
Focal Length:
Lighting:	Halogen operatory light. Florescent background

File:	pb141309.jpg
Description:	Acrylic duplicate of infected frontal craniotomy bone flap. Intended for future cranioplasty
Special Equipment	None
Exposure:	1/40
Fill Flash:	Yes
Focal Length:	15 mm
Lighting:	Florescent background

File:	pa111081.jpg
Description:	Post operative mandibular vestibuloplasty with palatal mucosal graft
Special Equipment	Lip retractors
Exposure:	1/125
Fill Flash:	Yes
Focal Length:	36 mm
Lighting:	Halogen operatory light. Florescent background

File:	pa171127.jpg
Description:	Extraoral open reduction internal fixation of complex mandibular fracture
Special Equipment	None
Exposure:	1/80
Fill Flash:	Yes
Focal Length:	23 mm
Lighting:	Halogen operating room spot light. Florescent background

File:	pa171124.jpg
Description:	Extraoral exposure of complex mandibular fracture
Special Equipment	None
Exposure:	1/80
Fill Flash:	Yes
Focal Length:	24 mm
Lighting:	Halogen operating room spot light. Florescent background

File:	pc121459.jpg
Description:	Extraoral exposure of traumatic mandibular defect with reconstruction plate in place.
Special Equipment	None
Exposure:	1/200
Fill Flash:	Yes
Focal Length:	20 mm
Lighting:	Halogen operating room spot light. Florescent background

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