Palatal suture closure in man from 15 to 35 years of age

Persson, Maurits; Thilander, Birgit

doi:10.1016/0002-9416(77)90123-3

Cited by 335 publications

(293 citation statements)

References 13 publications

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“…19 Nevertheless, previous studies have frequently warned of the risk of gingival recession and/ or bony dehiscence caused by dentoalveolar expansion. 3,12,20 In contrast, clinical crown heights were not significantly different in the treatment and posttreatment periods in this study ( Figure 6). Gingival recession of , 0.21 mm to 0.52 mm was not clinically significant during orthodontic treatment with MARME, which was in accordance with the findings of Lin et al 11 Use of the miniscrew could distribute the stress throughout the palate, decreasing the concentration of the stress around the anchor teeth.…”

Section: Discussionmentioning

confidence: 54%

“…With age, the rigidity of the craniofacial skeleton could limit skeletal effects of MARME. 2,3 Handelman reported that the maxillary arch width could be maintained after debonding following conventional RME. 19 Nevertheless, previous studies have frequently warned of the risk of gingival recession and/ or bony dehiscence caused by dentoalveolar expansion.…”

Section: Discussionmentioning

confidence: 99%

“…1 However, orthopedic maxillary expansion using nonsurgical conventional RME in adult patients has been considered either impossible or rarely successful because the midpalatal suture and adjacent articulations begin to fuse by late adolescence and become more rigid with age. 2,3 Potential limitations and side effects of conventional RME in adults have been reported, such as expansion failure or limited skeletal expansion, instability of results, pain, tissue swelling, buccal crown tipping, gingival recession, root resorption, and ulceration. 4 Surgically assisted RME (SARME) has been frequently used to overcome the above-mentioned limitations through surgical release of the closed sutures that resist expansion forces in adults.…”

Section: Introductionmentioning

confidence: 99%

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Nonsurgical miniscrew-assisted rapid maxillary expansion results in acceptable stability in young adults

Choi

Shi

Yul

et al. 2016

The Angle Orthodontist

164

188

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Objective: To evaluate the stability of nonsurgical miniscrew-assisted rapid maxillary expansion (MARME) in young adults with a transverse maxillary deficiency. Materials and Methods: From a total of 69 adult patients who underwent MARME followed by orthodontic treatment with a straight-wire appliance, 20 patients (mean age, 20.9 6 2.9 years) with follow-up records (mean, 30.2 6 13.2 months) after debonding were selected. Posteroanterior cephalometric records and dental casts were obtained at the initial examination (T0), immediately after MARME removal (T1), immediately after debonding (T2), and at posttreatment follow-up (T3). Results: Suture separation was observed in 86.96% of subjects (60/69). An increase in the maxillary width (J-J; 1.92 mm) accounted for 43.34% of the total expansion with regard to the intermolar width (IMW) increase (4.43 mm; P , .001) at T2. The amounts of J-J and IMW posttreatment changes were 20.07 mm (P . .05) and 20.42 mm (P 5 .01), respectively, during retention. The postexpansion change in middle alveolus width increased with age (P , .05). The postexpansion change of interpremolar width (IPMW) was positively correlated with the amount of IPMW expansion (P , .05) but not with IMW. The changes of the clinical crown heights in the maxillary canines, first premolars, and first molars were not significant at each time point. Conclusions: Nonsurgical MARME can be a clinically acceptable and stable treatment modality for young adults with a transverse maxillary deficiency. (Angle Orthod. 2016;86:713-720.)

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Section: Discussionmentioning

confidence: 54%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nonsurgical miniscrew-assisted rapid maxillary expansion results in acceptable stability in young adults

Choi

Shi

Yul

et al. 2016

The Angle Orthodontist

164

188

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“…However very little is known about the sutures of dinosaurs (or even extant archosaurs) from a histological perspective and only a few living mammalian species have been sectioned (i.e., some humans, Kokich, 1976;Koskinen et al, 1976;Latham, 1971;Miroue and Rosenberg, 1975;Opperman, 2000;Persson and Thilander, 1977;Sitsen, 1933; and some rats and rabbits, Moss, 1958;Persson, 1973;Persson et al, 1978;Persson and Roy, 1979;Pritchard et al, 1956). For future paleontological studies, it is important to document the osteohistology of sutures in order to understand their morphology and their (potential) relationship to ontogeny.…”

Section: Chondroid Bone and Dinosaursmentioning

confidence: 99%

Chondroid bone in dinosaur embryos and nestlings (Ornithischia: Hadrosauridae): Insights into the growth of the skull and the evolution of skeletal tissues

Bailleul

Behets

Lengelé

et al. 2016

Comptes Rendus Palevol

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In histology textbooks, the vertebrate skeleton is represented as almost entirely made of bone and cartilage. This is a false dichotomy and in fact, a continuum of intermediate tissues between bone and cartilage exists. Chondroid bone ([CB] or chondroid tissue), one of the most well-known intermediate tissues, has been reported in mammals, birds and crocodilians. It accommodates (1) rapid growth of the skull and (2) the development of craniofacial sutures. Since CB is present in the extant phylogenetic bracket of the Dinosauria, we hypothesized that it was also present in non-avian dinosaurs. By means of paleohistological examination and microradiography, we report for the first time the presence of CB in nonavian dinosaur embryos and nestlings (Ornithischia: Hadrosauridae). It was found in five locations: (1) scattered within the bone trabeculae of an embryonic surangular; (2) and (3) in the coronoid process and in the alveolar processes of an embryonic dentary; (4) in the mandibul... In histology textbooks, the vertebrate skeleton is represented as almost entirely made of bone and cartilage. This is a false dichotomy and in fact, a continuum of intermediate tissues between bone and cartilage exists. Chondroid bone ([CB] or chondroid tissue), one of the most well-known intermediate tissues, has been reported in mammals, birds and crocodilians. It accommodates (1) rapid growth of the skull and (2) the development of craniofacial sutures. Since CB is present in the extant phylogenetic bracket of the Dinosauria, we hypothesized that it was also present in non-avian dinosaurs. By means of paleohistological examination and microradiography, we report for the first time the presence of CB in non-avian dinosaur embryos and nestlings (Ornithischia: Hadrosauridae). It was found in five locations: (1) scattered within the bone trabeculae of an embryonic surangular; (2) and (3) in the coronoid process and in the alveolar processes of an embryonic dentary; (4) in the mandibular symphyses of an embryonic and a post-hatching dentary; (5) at the fronto-postorbital suture of an embryo. In these areas, CB was present in large amounts, suggesting that it played an important role in the rapid growth of the hadrosaurian skull during embryonic development. Moreover, the CB present in the sutural borders of a Hypacrosaurus frontal suggests that it was also involved in sutural growth, as it has been reported to be in mammalian and avian sutures. This is the first step taken to document and understand dinosaurian sutures from a histological perspective and it sheds light on an old problem by reporting the presence of CB in an additional clade within the Vertebrata. It is parsimonious to propose that CB in the chick embryo, Gallus gallus, the American alligator, Alligator mississippiensis and the hadrosaurs of the present study are homologous and that CB arose once and was inherited from their common ancestor.©

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“…It is, howe ver, of limited benefit in mature teenage and adult patients, since sutural closure at all the maxillary articulations is thought to increase the resistance of the maxillae to expansion. 2, 11 Techniques have therefore been developed to overcome these restrictions. These techniques invo l ve the surgical release of the maxillae to facilitate the use of rapid maxillary expansion devices.…”

Section: Introductionmentioning

confidence: 99%

Surgically‐assisted maxillary expansion

Woods

Wiesenfeld

Probert

1997

Australian Dental Journal

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A combined surgical and orthodontic technique for management of transverse maxillary deficiencies in mature patients is described and discussed. Special references are made to the surgical release of several circummaxillary articulations to facilitate the use of a fixed expansion device, and to the authors' addition of an osteotomy below the nasal spine, to ensure that the nasal septum remains independent of the maxillary segments. Indications for the use of this surgically-assisted maxillary expansion technique, and its advantages when compared with segmented surgical expansion, are also presented.

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Palatal suture closure in man from 15 to 35 years of age

Cited by 335 publications

References 13 publications

Nonsurgical miniscrew-assisted rapid maxillary expansion results in acceptable stability in young adults

Nonsurgical miniscrew-assisted rapid maxillary expansion results in acceptable stability in young adults

Chondroid bone in dinosaur embryos and nestlings (Ornithischia: Hadrosauridae): Insights into the growth of the skull and the evolution of skeletal tissues

Surgically‐assisted maxillary expansion

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