| 1. |
- Jonasson, Grethe, 1945, et al.
(författare)
-
Cervical thickness of the mandibular alveolar process and skeletal bone mineral density.
- 1999
-
Ingår i: Acta odontologica Scandinavica. - 0001-6357. ; 57:3, s. 155-61
-
Tidskriftsartikel (refereegranskat)abstract
- Much effort has been devoted to finding methods for detecting individuals with low bone mass and risk of osteoporotic fractures. The aim of the present study was to investigate whether there is a relationship between the thickness of the alveolar process and the bone mineral density (BMD) of the distal forearm. In 24 women (38-65 years), the BMD of the distal forearm, obtained by dual X-ray absorptiometry, was correlated to the difference between two measures of the thickness of the mandibular alveolar process in the region of the first premolar. A highly significant correlation (r = 0.95, P< 0.001) was found. The method was cross-validated by using the equation obtained from the linear regression analysis above to predict BMD in two other groups. In both groups, the correlation between the measured BMD of the forearm and the predicted BMD was highly significant (r = 0.91, P< 0.001). The interdental thickness between the canine and the second incisor was also correlated to BMD, but with lower predictive value (r = 0.67, P<0.001). Measurements of the mandibular alveolar process can be used as one of several parameters to predict skeletal bone density.
|
|
| 2. |
- Levring Jäghagen, Eva, et al.
(författare)
-
Persisting dysphagia after uvulopalatoplasty performed with steel scalpel.
- 1999
-
Ingår i: The Laryngoscope. - 0023-852X .- 1531-4995. ; 109:1, s. 86-90
-
Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVES/HYPOTHESIS: The aim of the present study was to determine the incidence of postoperative persisting dysphagia after uvulopalatoplasty performed with conventional steel scalpel (UPP) and to videoradiographically evaluate the oral and pharyngeal phases of swallowing in patients reporting persisting dysphagia. The hypothesis to be tested was that patients treated with UPP would demonstrate a lower incidence of persisting dysphagia than previously found after uvulopalatoplasty performed with laser technique (LUPP).STUDY DESIGN: Retrospective.METHODS: Sixty-eight of 76 consecutive patients treated with UPP answered a questionnaire concerning outcome and late complications after the operation. The patients who reported postoperative dysphagia were additionally interviewed at a minimum of 1 year postoperatively, and the oral and pharyngeal phases of swallowing were videoradiographically examined in those with persisting dysphagia.RESULTS: The incidence of persisting dysphagia after UPP was 29%. Videoradiographically 71% of the dysphagic patients showed a deviant pharyngeal swallowing pattern.CONCLUSION: The incidence of persisting dysphagia after UPP did not differ from that reported after laser uvulopalatoplasty. Dysphagia after UPP was mostly associated with videoradiographic signs of deviant pharyngeal swallowing function. Patients should be informed that there is a risk of developing dysphagia after uvulopalatoplasty.
|
|
| 3. |
- Akimoto, K, et al.
(författare)
-
Evaluation of titanium implants placed into simulated extraction sockets : a study in dogs
- 1999
-
Ingår i: International Journal of Oral & Maxillofacial Implants. - 0882-2786 .- 1942-4434. ; 14:3, s. 351-360
-
Tidskriftsartikel (refereegranskat)abstract
- The purpose of this study was to evaluate the effect of gap width on bone healing around implants placed into simulated extraction socket defects of varying widths in 10 mongrel dogs. All premolars were removed and the alveolar ridges were reduced to a width of 7 mm. Nine weeks later, a total of 80 implants, 10 mm long by 3.3 mm wide, were placed into osteotomy sites prepared to 3 different diameters in the coronal half, simulating extraction sockets. Three experimental sites, with gap sizes of 0.5 mm, 1.0 mm, and 1.4 mm, were created; the control sites had no gap. The depth of each defect was measured at the time of implant placement. All implants were stable at the time of placement. The dogs were euthanized 12 weeks after implant placement, and blocks containing the implants and adjacent bone were submitted for histologic evaluation. Clinically, all control and test sites healed, with complete bone fill in the defect. Percentages of bone-to-implant contact were measured histologically. As the gap widened, the amount of bone-to-implant contact decreased, and the point of the highest bone-to-implant contact shifted apically. These changes were statistically significant (P < .001). No statistically significant differences in bone-to-implant contact were found between the sites when the apical 4 mm of implants were compared. Within the limits of this study, the simulated extraction socket defects healed clinically, with complete bone fill, regardless of the initial gap size. However, the width of the gap at the time of implant placement had a significant impact on the histologic percentage and the height of bone-to-implant contact.
|
|
| 4. |
- Andersson, Pia, 1955-, et al.
(författare)
-
Testing an oral assessment guide during chemotherapy treatmen in a Swedish care setting : a pilot study
- 1999
-
Ingår i: Journal of Clinical Nursing. - 0962-1067 .- 1365-2702. ; 8:2, s. 150-158
-
Tidskriftsartikel (refereegranskat)abstract
- Oral complications are common in patients with haematological malignancies who undergo chemotherapy treatment. A pilot study including 16 haematological patients was carried out to evaluate the oral status using an Oral Assessment Guide (OAG) and to test the reliability of the OAG. The oral assessments were made daily by registered nurses at a Department of Internal Medicine in Sweden. Once a week a dental hygienist made the oral assessments independent of the registered nurses in order to provide data for calculations of inter-rater reliability. All patients had varying degrees of alterations in the oral cavity, especially in the mucous membranes, teeth/dentures and gums. The inter-rater agreement between the nurses and the dental hygienist was good for saliva and swallow, and moderate for voice and gums. Assessments to detect alterations in the oral cavity afford the opportunity for early and individualized interventions and may decrease the risk of oral infections. It is necessary to train the nurses to ensure high levels of reliability in the oral assessments. The OAG seems to be a reliable and clinical useful tool for assessing the oral cavity status and determining changes.
|
|
| 5. |
- Widenheim, Jan, 1930-, et al.
(författare)
-
Förebyggande tandvård
- 1997. - 1
-
Bok (övrigt vetenskapligt/konstnärligt)
|
|
| 6. |
- Brånemark, Rickard, 1960, et al.
(författare)
-
An in-vivo method for biomechanical characterization of bone-anchored implants.
- 1998
-
Ingår i: Medical engineering & physics. - 1350-4533. ; 20:3, s. 216-9
-
Tidskriftsartikel (refereegranskat)abstract
- Experimental equipment for in-vivo registrations of pull-out load vs displacement, applied torque vs angle of rotation, and lateral load vs lateral displacement has been developed. The set-up is designed for testing three implants inserted in a row and osseointegrated in, for instance, the proximal tibia of the beagle dog. The details of the set-up are described and considerations of the stress distributions are reported.
|
|
| 7. |
- Brånemark, Rickard, 1960, et al.
(författare)
-
Biomechanical characterization of osseointegration during healing: an experimental in vivo study in the rat.
- 1997
-
Ingår i: Biomaterials. - 0142-9612. ; 18:14, s. 969-78
-
Tidskriftsartikel (refereegranskat)abstract
- This study reports torsion tests and pull-out tests on osseointegrated commercially pure titanium fixtures. The tests were performed in vivo on a total of 26 rats. Three fixtures with a diameter of 2.0 mm were installed bilaterally in the proximal tibia in each animal. The mechanical testing was performed immediately after installation, after 2, 4, 8 and 16 weeks of unloaded healing. The torsional strength started to increase after 4 weeks of unloaded healing and there was a significant increase with time during the initial 16 weeks. The pull-out load increased rapidly during the first 4 weeks; thereafter, a moderate increase occurred during the following 12 weeks. A histological evaluation was performed after 0, 4, 8 and 16 weeks. There were significant (P < 0.01) correlations between torque and percentage of bone in contact with the fixture, and between pull-out load and the bone thickness around the fixture (P < 0.001). Estimations of shear stresses and shear moduli in the bone tissue (pull-out test) and at the interface (torque test) indicated that the increase in bone volume around the implant substantially improved the mechanical capacity.
|
|
| 8. |
- Isberg, A, et al.
(författare)
-
Persistent dysphagia after laser uvulopalatoplasty : a videoradiographic study of pharyngeal function.
- 1998
-
Ingår i: Acta Oto-Laryngologica. - 0001-6489 .- 1651-2251. ; 118:6, s. 870-874
-
Tidskriftsartikel (refereegranskat)abstract
- In a follow-up study of 79 patients two years after laser uvulopalatoplasty 21 (27%) reported persistent postoperative dysphagia, with aspiration symptoms in 22%. None of the patients had suffered from recurrent pneumonia. A total of 4% of the patients regretted the treatment because of their dysphagia problems. The objective of this study was to examine oral and pharyngeal function videoradiographically during swallowing in the patients with persistent dysphagia, to determine whether the subjective symptoms of dysphagia correlated with objective signs of pharyngeal dysfunction. Pharyngeal function during swallowing was deviant in 76% of the dysphagic patients. In 52% of the dysphagic patients premature leakage of bolus down to different levels of the pharynx, from the tongue base to sinus piriformis, was observed before the swallowing reflex was elicited. In the dysphagic patients substantial bolus retention was observed on the epiglottis or in the valleculae alter the propagation wave had passed (43%) as well as epiglottal dysmotility (24%). Of the dysphagic patients, 10% could not avoid aspiration during the examination. These findings could explain the symptoms reported by the patients.
|
|
| 9. |
|
|
| 10. |
|
|
