Three-dimensional occlusal examination of the contacts of maxillary premolars and molars in three different age groups

三个不同年龄组上颌前磨牙和磨牙接触面的三维咬合检查

• 批准号: 13470423
• 负责人: KAWAZOE Takayoshi
• 金额: $ 8.19万
• 依托单位: Osaka Dental University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13470423/
• 关键词: Occlusal contact; Intercuspal position; Occlusal examination; CAD (computer-aided design); Elderly; Attrition; 三次元咬合診査法; CAD(computer-aided design)

We attempted to determine whether occlusal contacts of the maxillary premolars and molars changed with age. Silicone occlusal registration was taken for five subjects each in three age groups, young, middle-aged and elderly. The subjects had no restorations with full occlusal coverage. All readings were taken at 30% of maximum voluntary clenching in the intercuspal position. A non-contact three-dimensional form measuring device (Surflacer VMS-250R, Unisn Inc., Osaka Japan) digitized the silicone occlusal registration. The three-dimensional data were analyzed by CAD software (Surfacer, Imageware Inc., Michigan USA) with a personal computer. The occlusal surface of the maxillary premolars were divided into four regions: the buccal cusp, lingual cusp, mesial marginal ridge, and distal marginal ridge. The occlusal surface of maxillary molars were divided into six regions: the mesial buccal cusp, distal buccal cusp, mesial lingual cusp, distal lingual cusp, mesial marginal ridge, and distal … More marginal ridge. We evaluated the occlusal contacts, which were defined as less than 60 μm of silicone thickness between opposing teeth, and analyzed their number, rate, area, and orientation. We found that occlusal contacts on the functional cusps were significantly different between the young and middle-aged, and between the young and elderly.The purpose of this study was to clarify the differences in amount and direction of mandibular displacement from habitual occlusal position to intercuspal position, between normal adults and volunteers with temporomandibular joint (TMJ) noise. The mandibular displacement in the volunteers with TMJ noise was larger than that in the normal adults. The direction of MOD (movement of dentition) was superior, and the direction of MOC (movement of condyle) was posterior, in all of the volunteers with TMJ noise. These results suggested that the mandibular displacement from habitual occlusal position to intercuspal position was associated with noise in the joint. Less

我们试图确定上颌前磨牙和磨牙的咬合接触是否随年龄而改变。对青年、中年、老年三个年龄组各5名受试者进行硅胶咬合配准。受试者没有全咬合覆盖的修复体。所有读数都是在口尖间位置最大自愿握紧量的30%处进行的。一种非接触式三维形状测量装置（Surflacer VMS-250R，日本大阪Unisn公司）将硅胶咬合配准数字化。三维数据用个人电脑CAD软件（Surfacer, Imageware Inc., Michigan USA）进行分析。上颌前磨牙的咬合面分为四个区域：颊尖、舌尖、中缘脊和远缘脊。上颌磨牙的咬合面分为6个区域：近颊尖、远颊尖、近舌尖、远舌尖、近缘脊和远颊缘脊。我们评估了咬合接触，定义为相对牙齿之间小于60 μm的硅胶厚度，并分析了它们的数量，速率，面积和方向。我们发现，在功能牙尖上的咬合接触在青年和中年、青年和老年人之间有显著差异。本研究的目的是阐明正常成人与颞下颌关节（TMJ）噪声的志愿者下颌从习惯咬合位到尖间位的位移量和方向的差异。颞下颌关节噪声组的下颌位移明显大于正常成人。所有颞下颌关节噪声组牙列运动方向偏上，髁突运动方向偏后。这些结果表明，下颌从习惯咬合位置到尖间位置的移位与关节噪声有关。少

项目成果

SASAKI Y: "Three-dimensional occlusal examination of the contacts of maxillary premolars and molars in three different age groups"JOURNAL OF OSAKA ODONTOLOGICAL SOCIETY. 66-1. 86-96 (2003)

SASAKI Y：“三个不同年龄组上颌前磨牙和磨牙接触面的三维咬合检查”大阪牙科学会杂志。

朴 康鉐: "健常者および顎機能障害者における習慣性咬合位から咬頭嵌合位への下顎変位の比較"日本補綴歯科学会雑誌. 47. 117-124 (2003)

Kang-hyun Park：“健康受试者和下颌功能障碍患者从习惯性咬合到牙尖间位置的下颌位移比较”日本修复医学会杂志 47. 117-124 (2003)。

佐々木泰照: "三次元咬合検査法からみた上顎臼歯における年代別の咬合接触状態"歯科医学. 66. 86-96 (2003)

Yasuteru Sasaki：“从三维咬合检查方法中观察到的按年龄组划分的上磨牙的咬合接触状态”牙科 66. 86-96 (2003)。

Park Gang-Suk: "Comparison of Mandibular Displacement from Habitual Occlusal Position to Intercuspal Position in Normal Adults and Volunteers with Temporomandibular Disorders"The Journal of Japan Prothodontic Society. 47-1. 117-124 (2003)

Park Gang-Suk：“正常成人和颞下颌疾病志愿者从习惯性咬合位置到牙尖间位置的下颌位移比较”日本口腔修复学会杂志。

西川学: "歯周疾患患者のadd画像法による咬合接触状態について"日本顎頭蓋機能学会雑誌. 14. 33-38 (2001)

Manabu Nishikawa：“关于牙周病患者使用附加成像的咬合接触状态”日本颌下颌功能学会杂志 14. 33-38 (2001)。