DHO 111 DAC and DAD HAND INSTRUMENTS AND DEVICES Dental Tools 4 PARTS OF DENTAL HAND INSTRUMENTS Handle Shank - joins the handle and a blade or nib. Cutting instrument = blade and a cutting edge‚ non-cutting instrument = nib and a face or point. . BASIC INSTRUMENTS MECS Mouth Mirror Increased visibility Reflecting light Retracting soft tissues Usual sizes No. 4 and 5 Constricted areas = No.2 2 general types: Plane mirror Magnifying mirror Cotton
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Orthognathic surgery Reconstruction of craniomaxillofacial deformities Based on skeletal growth potential Surgerical movement of jaw structiures Correct MANDIBULAR discrepencies Sagitall ramous osteostmies Sagittal split osteostomie ***************** Most common RIF increased popularitie Correct variety of mandibular deformities Distraction osteogenesis ** Genioplasty ** Dramatic facial change with relaltively minor surgery Morphology of bony chin and overlaying soft tissue must
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(Plaintiff) sued Central Medical Health Services and Physician that did the surgery (Defendants) for product liability for an implanted medical device that failed six years after his surgery in 1986. Cafazzo had surgery for the implantation of a mandibular prosthesis. Cafazzo sued the hospital (Defendant) and the surgeon (Defendant) under strict product liability. Cafazzo’s suit was based on that the product was defectively designed and lacked any warning necessary to ensure safety. The product manufacturer
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Prosimians) • Means “wet-nosed” • Lemurs and Lorises Strepsirhines: Shared Anatomical Features 1. Postorbital ring/bar (derived) 2. Unfused frontal bone (ancestral) 3. Unfused Mandibular Symphysis (ancestral) a. Mandibular symphysis at the midpoint of the chin 4. Tooth
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The thermal decomposition of nitrates – ‘writing with fire’ 31 A message is written on filter paper with a solution of sodium nitrate and is then dried‚ rendering it invisible. Applying a glowing splint to the start of the message makes the treated paper smoulder and the message is revealed as the glow spreads its way through the treated paper. Lesson organisation The demonstration takes about 10 -15 minutes. It could be a student activity‚ but with a large class it will need a well
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The lab was not infallible‚ however‚ as the samples could have been easily contaminated‚ mixed‚ or out of order. Also‚ burning the woods splints caused the flames to appear orange‚ affecting the results in several possible ways. The results seemed similar to each other and many of them seemed to share a slightly orange hue‚ perhaps because the splint was being burned unintentionally at the same time. The first unknown was identified as Calcium due to the similarities in color and the second
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Introduction: Occlusal vertical dimension (VD) can be defined as the distance measured between two points when the occluding members are in contact or it can be defined as the distance between any two points measured in the maxilla and the mandible when the teeth are in maximum contact. A loss of OVD can significantly have in impact on the function‚ aesthetics and comfort of the patient. Comprehension of altering vertical dimensional effects on facial aesthetics‚ diagnose of the causative factors
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ingestion. Use extreme caution | IV. Pre-Lab Questions: V. Procedure: 1.Dip the soaked wooden splint in one chemical at a time. Make a few crystal stick to the splint 2.Hold the end of the splint with the crystals in the burner flame and watch the first color you see. When it changes to orange‚ the splint is burning and we don’t care about that color 3. Use your chart from your prelab to estimate the wavelength of the color being produced
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affected. Clubfoot is most common in children who suffer from spina bifida who have an L4 or L5 motor level. Many orthopedic surgeons instead of serial casting suggest early taping and gentle manipulation followed by an application of a well-padded splint. The reason for this is because serial casting can cause skin irritations and breakdown. Another technique manipulation and casting is a treatment that begins shortly after birth. It involves slowly stretching out the tightened muscles and holding
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means of their flame tests. Materials •Barium Chloride •Calcium Chloride •Cupric Chloride •Lithium Chloride •Potassium Chloride •Sodium Chloride •Strontium Chloride •Bunsen burner •Flint striker •Wooden splints •Goggles Procedure 1. Prepare the Bunsen burner as discussed in class. 2.
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