What's the difference between dentary and jawbone?
Dentary
Definition:
(a.) Pertaining to, or bearing, teeth.
(n.) The distal bone of the lower jaw in many animals, which may or may not bear teeth.
Example Sentences:
(1) The documenting fossils, an incomplete dentary containing three teeth, and four isolated teeth from other, conspecific individuals (Fig.
(2) A diagnostic mammalian character is jaw articulation between squamosal and dentary bones, replacing the quadrate-articular joint of reptiles.
(3) In addition, numerous replacement teeth and tooth germs in various stages of development are located in a cavity in the dentary bone.
(4) The mammalian mandible, a derivative of another membraneous bone of the reptilian lower jaw, the dentary, possesses secondary cartilages in the angular and condylar processes.
(5) Two dental cleansing products, Rc-Prep and Largal Ultra, were subjected to a comparative study, evaluating their efficacy in vitro on 15 recently-extracted dentary units, through optic microscopy applied on the dentine wall of the instrumented root canal.
(6) Auditory efficiency, and sensitivity to higher sound frequencies were enhanced by diminution and loosening of the postdentary elements and quadrate, along with transference of musculature from postdentary elements to the dentary.
(7) The highly mobile symphysis, spherical dentary condyle, loss of superficial masseter muscle and zygoma, and the simplified zalamnodont molars all appear to be related to the large amount of mandibular rotation that occurs during occlusion.
(8) A newly discovered Argentinian Middle Triassic form shows, for the first time in an ancestral reptile, definite evidence of a squamosal-dentary articulation supplementary to the persistent primitive connection.
(9) Stage 39 CMS embryos showed shortening of the dentary and Meckel's cartilage.
(10) Although the labial surface of the dentary lacks a periosteal covering and some of the bone lacks any covering at all, it remains functional throughout the life of the animal.
(11) The dentary-squamosal jaw joint evolved more than once in advanced cynodont therapsids or their descendants, probably as a buttress against the reaction force created at the articulation by the adductor jaw musculature.
(12) These changes were made possible by associated modifications, including posterior expansion of the dentary.
(13) Additionally, a proposal was put forth for a retained canine teeth classification that may clearly and simply outline the retention, be easily understood and remembered, and may also apply to retained dentary organs with some similarity to canines as to their shape and root number.
(14) These stresses are: (1) dorsoventral shear of the symphysis due to the transfer of force from balancing to chewing sides, (2) bending of the symphysis causing tension along the inferior and compression along superior borders due to torsion on the dentaries from the jaw closing muscles, and (3) antero-posterior shear of the symphysis due to an anteriorly directed stress on the chewing side.
(15) As hyaline-cell cartilage is densely cellular and as that attached to the dentary, maxilla and cleithrum develops from the periosteum of these membrane bones, it must be regarded as secondary cartilage according to current concepts.
(16) Ultrathin sections of the nasal barbel of the channel catfish, Ictalurus punctatus, were studied in the electron microscope and the fine structure was compared to that of barbels of other teleosts and to the mandibular (dentary) barbels of I. punctatus.
(17) Although variability was not considered as is usual in clinical studies, in vitro evaluation as observed in this study allows a more accurate comparative analysis, since it was performed on one individual tooth, with analogous instrumentation and on dentary tissue with similar characteristics.
(18) The banding patterns and relative amounts of the proteins from dentary, vertebra and scale showed a basic similarity.
(19) The electrophoretic patterns of the proteins extracted from dentary, vertebra and scale with the phosphate buffer, 0.1 NHcl and SDS solution were studied to investigate their molecular aspects.
(20) The development of hyaline-cell cartilage attached to membrane (dentary, maxilla, nasal, lacrimal and cleithrum) and cartilage (basioccipital) bones has been studied in the viviparous black molly, Poecilia sphenops.
Jawbone
Definition:
(n.) The bone of either jaw; a maxilla or a mandible.
Example Sentences:
(1) Radiographic changes in the jawbones including alterations of the laminae durae were observed in twenty-three children.
(2) You can tell these ones are evil, because they are scowling, have weirder facial piercings, and wear epaulettes made of human jawbones.
(3) A radiographic survey of the jawbone adjacent to the teeth revealed a high incidence of bone pathosis in 889 randomly chosen patients.
(4) Its remains were recently put on display in the Museum of Docklands, although its jawbones stood as a roadside arch in Dagenham, still remembered in the name of Whalebone Lane.
(5) In the eighteenth century, a pedestrian strolling around Georgian London may have witnessed the bizarre sight of an ageing gentleman parading the streets on a painted horse and brandishing the jawbone of an ass.
(6) A total of 114 tumours of the jawbones was confirmed in a survey of 204,583 surgical specimens in Chinese in the University Department of Pathology, Hong Kong from 1963-1982.
(7) Bone-appositioning inflammatory processes (condensing osteitis), on the other hand, appeared mostly in the mandible, very often involving the first molar, thus indicating the differing biologic behavior of the two jawbones.
(8) In Maxillo-facial surgery: for orbital floor, maxillary sinus and jawbone reconstruction.
(9) Since then, President Petro Poroshenko’s jawboning has brought the exchange rate back close to the level on which Ukraine’s 2015 budget was based.
(10) Neurilemmomas arising within the jawbones are rare.
(11) Jawbone, considered Fitbit’s long term rival, has had setbacks in the last year, with product delays hurting sales at a time when Fitbit sold 3.9m trackers in the first quarter of this year.
(12) It could walk on four legs on land and in water, and heard by picking up vibrations through its jawbone, just as modern whales do.
(13) The eighth case of a benign osteoblastoma of the jawbones is presented.
(14) Misfit between a jawbone-anchored bridge and the abutments in the patient's jaw may result in, for example, fixture fracture.
(15) According to his description of the martyrdom of the Saint, her teeth were extracted and her jawbones broken.
(16) With products such as the FitBit One, Jawbone Up and Nike+ FuelBand boasting impressive sales numbers (the FuelBand reportedly sold out within four hours of its launch), it seems that self-tracking is finding traction and on the way to becoming an ubiquitous feature of daily life.
(17) Periodontal disease is the collective term given to a variety of inflammatory conditions in the tissue that supports and secures the teeth to the jawbone.
(18) Thirty-four children with chronic renal failure were examined to evaluate the character and frequency of radiographic changes in the jawbones as related to radiographic abnormalities in other skeletal regions and laboratory data.
(19) At the lower part of the lingual surface of the teeth in the anterior row and the labial surface of the teeth in the posterior row the bundles of fibrils start at the dentine and some fibrils run through connective tissue, while others terminate in projections of the jawbones.
(20) Faces having the same anteroposterior value for the jawbones can have very different ANB angles (Figs.