Strange artifact on OBJLoader - three.js

Question

I'm trying to load obj model.
Why does a strange boundary artifact appear on surface?
What I'm doing wrong? I'm creating the obj model using 3D Scanner.
Thank you.
/examples/webgl_loader_obj.html
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 200000 );
camera.position.z = 100;
// scene
scene = new THREE.Scene();
var ambient = new THREE.AmbientLight( 0x101030 );
scene.add( ambient );
var directionalLight = new THREE.DirectionalLight( 0xffeedd );
directionalLight.position.set( 1, 1, 1 );
scene.add( directionalLight );
//var directionalLight = new THREE.DirectionalLight( 0xffeedd );
//directionalLight.position.set( 0, 0, -1 );
//scene.add( directionalLight );
// texture
var manager = new THREE.LoadingManager();
manager.onProgress = function ( item, loaded, total ) {
console.log( item, loaded, total );
};
var texture = new THREE.Texture();
var loader = new THREE.ImageLoader( manager );
loader.load( 'textures/UV_Grid_Sm.jpg', function ( image ) {
texture.image = image;
texture.needsUpdate = true;
} );
// model
var loader = new THREE.OBJLoader( manager );
//loader.load( 'obj/male02/male02.obj', function ( object ) {
loader.load( '/ramgl/models/textured_mesh.obj', function ( object ) {
object.traverse( function ( child ) {
if ( child instanceof THREE.Mesh ) {
child.material.map = texture;
//child.material.side = THREE.DoubleSide;
}
} );
//object.position.y = - 80;
object.scale.x = object.scale.y = object.scale.z = 1000;
object.position.y = 300;
object.position.x = -500;
object.position.z = -100;
object.rotation.x = 180 * Math.PI / 180;
object.rotation.y = 30 * Math.PI / 180;
scene.add( object );
} );
//
renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
container.appendChild( renderer.domElement );
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
//
window.addEventListener( 'resize', onWindowResize, false );
}
/examples/webgl_loader_obj_mtl.html
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 20000 );
camera.position.z = 100;
// scene
scene = new THREE.Scene();
var ambient = new THREE.AmbientLight( 0x444444 );
scene.add( ambient );
var directionalLight = new THREE.DirectionalLight( 0xffeedd );
//directionalLight.intensity = 0.5;
directionalLight.position.set( 1, 0, 1 ).normalize();
//directionalLight.onlyShadow = false;
scene.add( directionalLight );
var directionalLight = new THREE.DirectionalLight( 0xffeedd );
directionalLight.position.set( 0, 0, -1 ).normalize();
scene.add( directionalLight );
// model
var loader = new THREE.OBJMTLLoader();
//loader.load( 'obj/male02/male02.obj', 'obj/male02/male02_dds.mtl', function ( object ) {
//loader.load( '/ramgl/models/textured_mesh.obj', '/ramgl/models/textured_mesh.mtl', function ( object ) {
loader.load( '/ramgl/models/textured_mesh.obj', '', function ( object ) {
object.scale.x = object.scale.y = object.scale.z = 1000;
object.position.y = 300;
object.position.x = -500;
object.position.z = -100;
object.rotation.x = 180 * Math.PI / 180;
object.rotation.y = 30 * Math.PI / 180;
scene.add( object );
} );
//
renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.setClearColorHex( 0x333333, 1 );
container.appendChild( renderer.domElement );
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
//
window.addEventListener( 'resize', onWindowResize, false );
}