scholarly journals Non-invasive evaluation of labial gingival and alveolar crest thickness in the maxillary anterior teeth region by 15-MHz B-mode ultrasonography

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Meng Sun ◽  
Xiaofeng Liu ◽  
Ting Xia ◽  
He Meng
Keyword(s):  
Surgical Procedures ◽  
Periodontal Tissue ◽  
Gingival Thickness ◽  
Gingival Margin ◽  
Non Invasive ◽  
Anterior Teeth ◽  
Alveolar Crest ◽  
The Mean ◽  
Healthy Participants ◽  
Invasive Evaluation

Abstract Background Knowledge of gingival thickness (GT) and alveolar crest thickness (ACT) is essential when performing surgical and non-surgical procedures in the maxillary anterior teeth region. This study aimed at evaluating the GT and ACT in the maxillary anterior teeth region using 15-MHz B-mode Ultrasonic (US). Methods A total of 300 teeth from 50 healthy participants, comprising 25 women and 25 men, aged between 18 and 35 years were analyzed. We measured labial periodontal tissue structures of maxillary anterior teeth, including GT and ACT, at 3 mm apical to the gingival margin (GT3) and the crestal level, respectively. The GT and ACT measurements were correlated. Results The mean labial GT3 of the maxillary central incisors, lateral incisors, and canines were 1.24 ± 0.03 mm, 1.21 ± 0.03 mm and 1.11 ± 0.03 mm, respectively. Canine GT3 was significantly thin than those in the central and lateral incisors (P < 0.05). With regards to labial ACT, we recorded 0.79 ± 0.03 mm, 0.76 ± 0.02 mm and 0.73 ± 0.02 mm for maxillary central incisors, lateral incisors and canines, respectively. There were no significant differences in ACT of maxillary anterior teeth (P > 0.05). GT3 of men was greater than that of women (P < 0.05). In addition, GT and ACT were positively correlated (r = 0.32, P < 0.01). Conclusion 15-MHz B-mode US is an effective tool for measuring labial GT and ACT of anterior teeth. There are sex-associated differences in GT3 and the correlation between the GT3 and ACT of anterior teeth is moderately positive.

scholarly journals Measurements of buccal gingival and alveolar crest thicknesses of premolars using a noninvasive method

2020 ◽  
Vol 22 (4) ◽  
pp. 409
Author(s):  
Meng Sun ◽  
Wei Yao ◽  
Yong Qiang Deng ◽  
Jun Cao ◽  
He Meng
Keyword(s):  
Reliable Method ◽  
Strong Positive Correlation ◽  
Periodontal Tissue ◽  
Noninvasive Method ◽  
Gingival Thickness ◽  
Alveolar Crest ◽  
Maxillary Premolars ◽  
Reproducible Method ◽  
Human Participants ◽  
The Relationship

Aims: Knowledge of gingival thickness (GT) and alveolar crest thickness (ACT) is essential for performing various surgical and non-surgical procedures in oral healthcare. However, a noninvasive, no-radiation and reproducible method for measuring GT and ACT is not yet determined. This study aimed to measure the buccal GT and ACT of premolars using 15-MHz B-mode ultrasonography (US) and to explore the relationship between GT and ACT.Material and methods: The GT in four swine mandibles was measured using15-MHz B-mode US and using K-file needles to gauge the accuracy of US. B-mode US at 15 MHz was also used to measure periodontal tissue structures including buccal GT3 (3 mm apical to the gingival margin) and ACT in 400 premolars of 50 human participants with healthy periodontium.Results: There was a strong positive correlation between US and invasive K-file needle measurements of GT in swine mandibles (p<0.05). The correlation between buccal GT3 and ACT of premolars was moderately positive (p<0.05). The gingiva of the maxillary premolars and ACT of the maxillary first premolars were thicker in men than in women (p<0.05).Conclusions: B-mode US at 15 MHz is a valid and reliable method for measuring GT and ACT and for evaluating their relationship. 

scholarly journals Assessment of the relationship between labial gingival thickness and the underlying bone thickness in maxillary anterior teeth by two digital techniques

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Linhong Wang ◽  
Yan Ruan ◽  
Jianping Chen ◽  
Yunxiao Luo ◽  
Fan Yang
Keyword(s):  
Negative Correlation ◽  
Significant Negative Correlation ◽  
Bone Thickness ◽  
Gingival Thickness ◽  
Anterior Teeth ◽  
Weak Negative Correlation ◽  
Implant Restoration ◽  
The Relationship ◽  
Esthetic Area ◽  
Healthy Participants

AbstractThis study aimed to noninvasively assess the relationship between the labial gingival thickness (GT) and the underlying bone thickness (BT) of maxillary anterior teeth by two digital techniques. A total of 30 periodontally healthy participants with 172 maxillary anterior teeth were enrolled. GT and BT were measured at 2, 4 and 6 mm apical to the cemento-enamel junction (CEJ) by two digital techniques: M1—cone-beam computed tomography (CBCT) and M2—digital intraoral scanning (DIS) combined with CBCT. The Pearson's correlation coefficient was calculated to determine the correlation between GT and BT. A significant negative correlation was identified between GT and BT at 2 mm apical to the CEJ for central incisors (CI), lateral incisors (LI), and canines (CA) both by M1 and M2, while a weak negative correlation at 4 mm apical to the CEJ was observed by M1 for CA. No significant correlation was found at other sites by both M1 and M2. The labial BT was < 1 mm in most cases (85% of CI; 97% of LI; and 90% of CA). Within the limitation of this study, it was concluded that GT and BT seemed to be negatively correlated at 2 mm apical to the CEJ. Therefore, caution is warranted when implant restoration at the esthetic area of the anterior teeth.

scholarly journals Evaluation of the morphometric relationship between the alveolar bone and gingival dimensions in the maxillary anterior teeth using cone-beam computed tomography imaging: A cross-sectional study

2021 ◽  
Author(s):  
Katia Montanha-Andrade ◽  
◽  
Ieda M Crusoé-Rebello ◽  
Nara Santos Araujo ◽  
Maurício Andrade Barreto ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Alveolar Bone ◽  
Pearson Correlation ◽  
Cone Beam ◽  
Gingival Thickness ◽  
Gingival Margin ◽  
Computed Tomography Images ◽  
Anterior Teeth ◽  
Gingival Dimensions

The purpose of this study was to investigate the relationship between the alveolar bone and gingival dimensions in the maxillary anterior teeth. Cone-beam computed tomography images of 160 maxillary anterior teeth were evaluated. The Bone (BT) and Gingival Thickness (GT) and distances between Cemento-Enamel Junction (CEJ) and alveolar Bone Crest (CEJ-BC) and Cemento-Enamel Junction and Gingival Margin (CEJ-GM) were measured on the labial surface at the cervical third of the tooth root. Pearson correlation test or partial correlation was used. BT was significantly and positively associated with CEJ-GM in lateral incisors (p=0.04). The correlation between CEJBC and CEJ-GM was negative and statistically significant for incisors and canines (p≤0.01). The correlation between CEJ-BC and GT was positive and statistically significant for central incisors and canines (p≤0.01). Greater bone thickness was associated with higher gingival margin level at the lateral incisor, but not with bone crest level. Lower bone crest level was associated with greater gingival thickness at the central incisor and canines, and with lower gingival margin level at all the anterior maxillary teeth. The planning of orthodontic, periodontal, and restorative treatments should consider these dimensions of marginal periodontal tissue are interrelated and their relationship vary by tooth type.

Assessment of the Relationship Between Labial Gingival Thickness and Underlying Bone Thickness in Maxillary Anterior Teeth by Two Digital Techniques

2021 ◽  
Author(s):  
Linhong Wang ◽  
Jianping Chen ◽  
Yan Ruan ◽  
Yunxiao Luo ◽  
Fan Yang
Keyword(s):  
Computed Tomography ◽  
Negative Correlation ◽  
Cone Beam Computed Tomography ◽  
Significant Negative Correlation ◽  
Cone Beam ◽  
Bone Thickness ◽  
Gingival Thickness ◽  
Anterior Teeth ◽  
The Relationship ◽  
Healthy Participants

Abstract The aim of this study is to noninvasively assess the relationship between the labial gingival thickness (GT) and the underlying bone thickness (BT) of the maxillary anterior teeth by two digital techniques. GT and BT were measured at 2、4 and 6 mm apical to the cemento-enamel junction (CEJ) by two digital techniques: M1- cone-beam computed tomography (CBCT) and M2- digital intraoral scanning (DIS) combined with CBCT (30 healthy participants, 172 maxillary anterior teeth). Pearson's correlation coefficient was calculated to assess the correlation between GT and BT. A significant negative correlation was identified between GT and BT at 2、4 mm apical to the CEJ for central incisors (CI), lateral incisors (LI), and canines (CA) both by M1 and M2, but not at 4 mm apical to the CEJ for CA (M2) or at 6 mm apical to the CEJ for all (M1, M2). The labial BT was demonstrated < 1 mm in most cases (85% of the CI; 97% of the LI; and 90% of the CA). Within the limitation of this study, it is concluded that the GT and BT seems to be negatively correlated in most cases, which should be cautious clinically.

Co-Relation of Gingival Biotype (Periodontal Phenotype) with Width of Keratinized Gingiva in Maxillary Anterior Teeth in Patients Reporting to a Local Tertiary Care Dental Hospital

2021 ◽  
Vol 15 (10) ◽  
pp. 3193-3195
Author(s):  
Muhammad Usman Khattak ◽  
Irshad Ahmed ◽  
Kapil Kumar ◽  
Muhammad Iftikhar Ahsen ◽  
Khurram Ata Ullah ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Tertiary Care ◽  
Positive Correlation ◽  
Gingival Thickness ◽  
Gingival Margin ◽  
Anterior Teeth ◽  
Mean Width ◽  
Dental Hospital ◽  
Periodontal Phenotype ◽  
Gingival Biotype

Objective: To find out the correlation of gingival biotype with width of keratinized gingiva in maxillary anterior teeth in patients at tertiary care dental hospital presenting for routine periodontal care. Materials And Methods: In this crossectional study, a total of 87 patients were observed in department of Periodontology, Fatima Memorial Hospital College of Medicine and Dentistry Lahore. The gingival biotype (gingival thickness) were determined by using the transparency of the periodontal probe through gingival sulcus. The width of the keratinized gingiva was measured by measuring the distance between the most coronal point of the gingival margin and the mucogingival junction measured at the midpoint of the vestibular face of the teeth using a Michigan O periodontal probe with William’s markings. Results: In this study mean age was 38 years with SD ± 10.88. Forty six percent patients were male and 54% patients were female. Mean width of keratinized gingiva was 4.22mm ± 1.10 while mean gingival biotype was 1.5 mm ± 0.65. The correlation coefficient r=0.277 shows a positive correlation of width of keratinized gingiva with gingival biotype Conclusion: The study concluded that there is a positive correlation of gingival biotype with width of keratinized gingiva in maxillary anterior teeth. Keywords: gingival biotype, width of keratinized gingival, maxillary anterior teeth

scholarly journals Correlation analysis of periodontal tissue dimensions in esthetic zone using a non-invasive digital method

2019 ◽  
Author(s):  
Yun-Jeong Kim ◽  
Ji-Man Park ◽  
Hyun-Jae Cho ◽  
Young Ku
Keyword(s):  
Alveolar Bone ◽  
Digital Method ◽  
Clinical Parameters ◽  
Bone Thickness ◽  
Gingival Thickness ◽  
Periodontal Tissues ◽  
Non Invasive ◽  
Crown Length ◽  
Crown Width ◽  
Alveolar Crest

Abstract Background. Recently, direct intraoral scanning and superimposing methods have been applied to measure the dimensions of periodontal tissues. The aim of this study was to analyze various correlations between labial gingival thickness and underlying alveolar bone thickness as well as clinical parameters among the three tooth types (central incisors, lateral incisors, and canines) using the digital method. Methods. In 20 periodontally healthy subjects, cone-beam computed tomography (CB-CT) images and intraoral scanned files were obtained. Measurements of labial alveolar bone and gingival thickness at the central incisors, lateral incisors, and canines were performed at 0–5 mm points from the alveolar crest on the superimposed images. Clinical parameters including the crown width/crown length ratio (CW/CL), gingival width (GW), gingival scallop (SC), and transparency of the periodontal probe through the gingival sulcus (TRAN) were examined. Results. Gingival thickness at the alveolar crest level was positively correlated with the thickness of the alveolar bone plate (p<0.05). The central incisors revealed a strong correlation between A1 and A2 (labial alveolar bone thickness at 1 and 2 mm, respectively, inferior to the alveolar crest) with the thickness of the gingiva at the G0, whereas G0 and labial bone thickness at every level were positively correlated at the lateral incisors and canines. The correlation analyses revealed no significant correlation between the clinical parameters and the hard and soft tissue thicknesses. Conclusions. The gingival thickness at the alveolar crest level revealed a positive correlation with labial alveolar bone thickness, although this correlation at identical depth levels was not significant. The measurement of gingival thickness at, or under the alveolar crest level, was not associated with the clinical parameters of the gingival features, such as the crown form and the gingival scallop, or the keratinized gingival width. Therefore, it is recommended that, in future studies, accurate measuring methods of the supracrestal gingival area should be developed, and the predictive potential of clinical parameters on tissue thickness should be verified.

scholarly journals Measurement and clinical significance of gingival biotype in anterior teeth

2020 ◽  
Vol 9 (1) ◽  
Author(s):  
Lan Li
Keyword(s):  
Individual Differences ◽  
Morphological Characteristics ◽  
Clinical Work ◽  
Periodontal Tissue ◽  
Gingival Thickness ◽  
Anterior Teeth ◽  
Choice Of Treatment ◽  
Reasonable Choice ◽  
The Individual ◽  
Gingival Biotype

Abstract:The morphological characteristics of periodontal tissue and tooth tissue in gingival biotype are one of the indicators reflecting the individual differences of periodontal tissue in patients. Gingival biotypes of anterior teeth are often related to the prognosis of smile aesthetic treatment, which is one of the reference indexes for predicting the success rate of aesthetic treatment such as restoration, implant, periodontal, orthodontic and so on. Gingival biotypes have individual differences, so different gingival biotypes have different responses to different external stimuli. In the current clinical work, the correct evaluation of gingival biotype, especially the accurate measurement of gingival thickness, is the basis of reasonable choice of treatment and prognosis evaluation.

Ultrasonic Evaluation of "Silent Regions" in the Thyroid Scintiscan

1978 ◽  
Vol 17 (01) ◽  
pp. 16-23 ◽  
Author(s):  
Ch. L. Zollikofer ◽  
J. Wewerka ◽  
Th. Frank
Keyword(s):  
Needle Biopsy ◽  
Clinical Course ◽  
Stimulation Test ◽  
Evaluation Procedure ◽  
Sonographic Diagnosis ◽  
Non Invasive ◽  
Evaluation Procedures ◽  
Ultrasonic Evaluation ◽  
Invasive Evaluation ◽  
Autonomous Adenoma

35 patients with scintigraphically silent thyroid regions without palpable cold nodules were further evaluated by ultrasonography. In 33 cases the sonographic diagnosis was confirmed by other examinations or the clinical course. 2 cases were misinterpreted right at the beginning of our series.The use of ultrasonography in evaluating silent thyroid regions in the totally decompensated autonomous adenoma, in unilateral thyroid aplasia, thyroiditis and hyperthyroidism is shown to be a reliable and valuable supplement to the clinical and radioisotopic evaluation procedures. When differentiating the totally decompensated autonomous adenoma from unilateral thyroid aplasia a stimulation test need not be performed in most cases. Suspected thyroiditis can be confirmed in a simple way. Being a non-invasive evaluation procedure, ultrasonography should be used before performing a needle biopsy.

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