Evaluation of palatal support tissues for placement of orthodontic mini-implants in mouth breathers with high-narrow palates versus nose breathers with normal palates: a retrospective study

Kang, Qichao; Cha, Chang; Huang, Desheng; Zuo, Sihui; Yan, Xiulin

doi:10.1007/s00784-019-03004-w

Cited by 7 publications

(5 citation statements)

References 34 publications

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“…Men usually have larger masticatory force, 37 which is highly likely to influence the mandibular implants during the healing period of two‐stage surgeries. Previously, some studies reported that gender was not associated with early failure, 6,7,38 while other studies reported that male gender was a risk factor 4,13 . However, the reasons why the influence of gender on early implant failure was different in maxillae and mandibles need further investigation.…”

Section: Discussionmentioning

confidence: 96%

The risk factors of early implant failure: A retrospective study of 6113 implants

Chen

et al. 2021

Clin Implant Dent Rel Res

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Background The risk factors of early implant failure were controversial among previous studies, especially for implants in different sites. Purpose To analyze the rate and risk factors of early implant failure occurring before the placement of final prosthesis. Materials and methods A retrospective study was conducted based on electrical medical records of patients who received dental implant placement from 2015 to 2019. Generalized estimation equation analyses were used to explore potential risk factors influencing early implant failure. Results Overall, 6113 implants in 3785 patients were included. The rate of early implant failure was 1.6% at patient level and 1.2% at implant level. The early implant failure was significantly associated with implants in the posterior maxilla, with specific surface modifications and in previously augmented sites (p < 0.05). Risk factors for maxillary implants included surface modification and bone augmentation procedures (p < 0.01), whereas risk factors for mandibular implants included gender and bone augmentation procedures (p < 0.05). For implants placed in previously augmented sites, implants placed in the anterior mandible had a higher risk of early failure (p < 0.05). Conclusions The risk factors for early implant failures varied among different sites; hence, they should be comprehensively considered in presurgical treatment plan.

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Section: Discussionmentioning

confidence: 96%

The risk factors of early implant failure: A retrospective study of 6113 implants

Chen

et al. 2021

Clin Implant Dent Rel Res

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“…28 The subjective facial analysis is an efficient method, and there is an agreement between both subjective and cephalometric analyses in evaluations of the soft tissue. 15 Regarding the skeletal pattern, the subjective method requires improvements in Most studies using 3D technology to assess the dimensions of the hard palate were related to treatments for palatal disjunction 11,12,20,21 and/or mouth-breathing in young patients, 31,32 reinforcing that malocclusion may play a role in facial architecture. The present study used models from a sample of individuals with normal natural occlusion, and the results can serve as parameters for future research on biomechanics, configurations and lingual arch shapes, [8][9][10][11][12][23][24][25][26][27] which are important factors to be considered for the patients' adherence to the technique.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of palatal dimensions in different facial patterns by using digital dental casts

Kairalla

Velasco

Bachi

et al. 2022

Dental Press J. Orthod.

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Objective: To analyze the variations of hard palate volume in adults with normal occlusion and different facial types and patterns, by using a three-dimensional analysis on digital casts. Methods: The dental casts of 70 Caucasian adults (28 men, 42 women), mean age of 16.4 years (SD 1.3 years), were scanned by using a tridimensional scanner (Delcam PowerSHAPE™, 2010, Birmingham, UK). Close points were selected in the gingival and cervical regions on the lingual surface of the maxillary teeth, to analyze palatal morphology. The facial patterns and types, and the measurements (width, length, height, volume) of the space on the hard palate were compared using analysis of covariance (ANCOVA), with age as the covariate, and sex as the independent variable. The significance level of 5% (p < 0.05) was adopted. Results: This study showed that the measurements of the width and length were similar among the mesofacial, dolichofacial and brachyfacial facial types, although the height and volume of the space on the hard palate were slightly smaller in dolichofacial individuals, and both Pattern I and Pattern II individuals showed no significant changes for the four measurements. The mean values among facial patterns were: Pattern I - width 38.31±2.59 mm; length 37.44±2.42 mm; height 17.03±2.42 mm and volume 10.52±1.72 mm3; Pattern II - width 37.48±2.44 mm; length 37.48±2.44 mm; height 16.79±2.42 mm and volume 10.41±1.65 mm3 (p>0.05 for all variables). Conclusion: There were no significant differences for the facial patterns and facial types of the individuals compared in the analyzed sample.

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“…Palatal bone thickness (bone depth) was not determined in our study and had great individual variation 18,34 . When the bone depth was not su cient for mini-implant length and diameter, bicortical anchorage was recommended by clinicians 35 .…”

Section: Discussionmentioning

confidence: 77%

Mapping of the recommended and optimal orthodontic implantation sites in the palate by cone-beam computed tomography

Zhu¹,

Zhao

Wang³

et al. 2023

Preprint

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Objective To measure the palatal thickness of soft tissues and the density of cortical bones to determine safe regions for the placement of orthodontic mini-implants and to examine the influence of sex and age on soft-tissue thickness and cortical bone density. Materials and Methods Cone-beam computed tomography images of 42 patients (22 males, 20 females), including 21 adults and 21 adolescents, were examined for this study. The palatal soft-tissue thickness and cortical bone density were measured at the coronal planes between the premolars (P4-5), between the second premolars and first molars (P5-6), and between the first molars and second molars (P6-7). Results Cortical bone density was greatest at P4-5, followed by and P5-6, P6-7 while the thickness of soft tissue was similar among the three planes. Cortical bone density decreased from anterior to posterior and from lateral to median. Soft tissue thickness increased from the median to the lateral and was similar anterior to the posterior. Palatal thickness and cortical bone density are influenced by sex, age, and their interactions. The recommended and optimal sites for palatal orthodontic mini-implants were then mapped. Conclusions Depending on soft tissue thickness and bone density, the preferred implant site tends to be more anterior and closer to the midpalatal suture region. Due to the diversity of palatal morphology among individuals, preferably with cone-beam CT.

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Evaluation of palatal support tissues for placement of orthodontic mini-implants in mouth breathers with high-narrow palates versus nose breathers with normal palates: a retrospective study

Cited by 7 publications

References 34 publications

The risk factors of early implant failure: A retrospective study of 6113 implants

The risk factors of early implant failure: A retrospective study of 6113 implants

Evaluation of palatal dimensions in different facial patterns by using digital dental casts

Mapping of the recommended and optimal orthodontic implantation sites in the palate by cone-beam computed tomography

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